WO2019153359A1 - 一种测量方法及装置 - Google Patents

一种测量方法及装置 Download PDF

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Publication number
WO2019153359A1
WO2019153359A1 PCT/CN2018/076569 CN2018076569W WO2019153359A1 WO 2019153359 A1 WO2019153359 A1 WO 2019153359A1 CN 2018076569 W CN2018076569 W CN 2018076569W WO 2019153359 A1 WO2019153359 A1 WO 2019153359A1
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WO
WIPO (PCT)
Prior art keywords
cell
terminal
currently camped
threshold
ref
Prior art date
Application number
PCT/CN2018/076569
Other languages
English (en)
French (fr)
Inventor
王宏
张戬
柴丽
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to BR112020016285-0A priority Critical patent/BR112020016285A2/pt
Priority to JP2020542972A priority patent/JP7046204B2/ja
Priority to PCT/CN2018/076569 priority patent/WO2019153359A1/zh
Priority to EP18904690.7A priority patent/EP3745775A4/en
Priority to CN201880088987.3A priority patent/CN111713139B/zh
Publication of WO2019153359A1 publication Critical patent/WO2019153359A1/zh
Priority to US16/991,297 priority patent/US11503484B2/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/0005Control or signalling for completing the hand-off
    • H04W36/0083Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/0085Hand-off measurements
    • H04W36/0094Definition of hand-off measurement parameters
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/04Arrangements for maintaining operational condition
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/24Reselection being triggered by specific parameters
    • H04W36/30Reselection being triggered by specific parameters by measured or perceived connection quality data
    • H04W36/304Reselection being triggered by specific parameters by measured or perceived connection quality data due to measured or perceived resources with higher communication quality
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/10Scheduling measurement reports ; Arrangements for measurement reports

Definitions

  • the present application relates to the field of communications technologies, and in particular, to a measurement technique.
  • LTE Long Term Evolution
  • 5th Generation 5th-Generation, 5G
  • communication signals are usually covered in the form of cells.
  • a cell having a large communication signal coverage area may be referred to as a macro cell, and a cell having a small communication signal coverage area may be referred to as a small cell.
  • the small cell and the macro cell may be deployed on different frequencies, or may be deployed on the same frequency.
  • the terminal can select a cell by measuring signal quality of a cell on a different frequency.
  • the threshold for broadcasting the measurement broadcasted or sent by the base station of the currently camped cell may be received, and the signal quality or signal power of the currently camped cell is measured to be less than
  • the measurement of the neighboring cell of the currently camped cell is started.
  • the threshold is low, the terminal cannot start the measurement of the neighboring cell in time, and thus the signal cannot be reselected in time. Better on the community. If the threshold is high, the timing at which the terminal starts the measurement is earlier, which increases the measurement power consumption of the terminal.
  • the present application provides a measurement method, a device, and a computer storage medium.
  • the technical solution is as follows:
  • a measurement method comprising:
  • the currently camped cell is measured to obtain ⁇ S i
  • i is a positive integer, i ⁇ N ⁇ , where N is the total number of times the currently camped cell is measured within ⁇ t, and S i is The amount of cell state obtained by the i-th measurement;
  • S REF is updated such that S REF is equal to S N , S REF is The reference cell state quantity of the currently camped cell; wherein, if S REF -S i is greater than or equal to the first threshold, the neighboring cell of the currently camped cell is measured.
  • the terminal when the terminal determines that the cell state quantity in ⁇ t is smaller than the reference cell state quantity, on the one hand, the terminal may start measurement on the neighboring cell, and on the other hand, the terminal may update S REF to ⁇ t.
  • the last measured cell state quantity S N so that if the terminal fails to reselect to other cells after measuring the neighboring cell, the current camped cell can be measured again at ⁇ t based on the updated S REF Whether the amount of the cell state within the condition satisfies the condition, so as to determine whether to start the measurement of the neighboring cell again.
  • the number of times the terminal measures the neighboring cell is reduced, and the power consumption of the terminal is reduced.
  • the method further comprises: receiving information indicating the ⁇ t from the network device, or information indicating the first threshold.
  • the method further includes: acquiring S REF after the cell reselects or selects the currently camped cell.
  • the terminal may obtain the S REF from the network device, or may measure the cell state quantity of the currently camped cell at the moment of camping on the currently camped cell, and determine the measured cell state quantity as S REF . It may be that the cell state quantity of the currently camped cell of the latest (or most recent) measurement is determined as S REF before the time of camping on the currently camped cell.
  • the cell state quantity includes a signal power RSRP or a signal quality RSRQ.
  • the coverage of one or more cells in the neighboring cell is greater than the coverage of the currently camped cell.
  • the method further includes:
  • the condition of the cell reselection may be that the coverage of the cell is greater than the coverage of the currently camped cell, and the signal quality or signal power of the cell is greater than the third threshold.
  • the method further includes:
  • a measurement report is sent to the network device, the measurement report including a signal quality RSRQ or a signal power RSRP of the one or more cells.
  • the measurement report may be sent to the network device, so that the network device performs cell handover on the terminal according to the signal quality or signal power of one or more cells included in the measurement report.
  • the method further includes:
  • the coverage of the one or more cells is greater than the coverage of the currently camped cell ;
  • the coverage of the one or more cells is greater than the coverage of the currently camped cell
  • the coverage of the one or more cells is greater than the coverage of the currently camped cell
  • the coverage of the one or more cells is greater than the coverage of the currently camped cell. range.
  • a measurement method comprising:
  • S current -S REF is greater than or equal to the second threshold, updating S REF such that S REF is equal to S current , and S REF is the reference cell state quantity of the currently camped cell;
  • the method further includes:
  • a message indicating a second threshold or a message indicating a first threshold is received from the network device.
  • the method further includes: acquiring S REF after the terminal reselects or selects the currently camped cell.
  • the terminal may obtain the S REF from the network device, or may measure the cell state quantity of the currently camped cell at the moment of camping on the currently camped cell, and determine the measured cell state quantity as S REF . It may be that the cell state quantity of the currently camped cell of the latest (or most recent) measurement is determined as S REF before the time of camping on the currently camped cell.
  • the cell state quantity includes a signal power RSRP or a signal quality RSRQ.
  • the coverage of one or more cells in the neighboring cell is greater than the coverage of the currently camped cell.
  • the method further includes:
  • the condition of the cell reselection may be that the coverage of the cell is greater than the coverage of the currently camped cell, and the signal quality or signal power of the cell is greater than the third threshold.
  • the method further includes:
  • a measurement report is sent to the network device, the measurement report including a signal quality RSRQ or a signal power RSRP of the one or more cells.
  • the measurement report may be sent to the network device, so that the network device performs cell handover on the terminal according to the signal quality or signal power of one or more cells included in the measurement report.
  • the method further includes:
  • the coverage of the one or more cells is greater than the coverage of the currently camped cell ;
  • the coverage of the one or more cells is greater than the coverage of the currently camped cell
  • the coverage of the one or more cells is greater than the coverage of the currently camped cell
  • the coverage of the one or more cells is greater than the coverage of the currently camped cell. range.
  • a measurement method comprising:
  • the currently camped cell is measured to obtain ⁇ S i
  • i is a positive integer, i ⁇ N ⁇ , where N is the total number of times the currently camped cell is measured within ⁇ t, and S i is The amount of cell state obtained by the i-th measurement;
  • the method further comprises: receiving information indicating the ⁇ t from the network device, or information indicating the first threshold.
  • the method further includes: acquiring S REF after the terminal reselects or selects the currently camped cell.
  • the terminal may obtain the S REF from the network device, or may measure the cell state quantity of the currently camped cell at the moment of camping on the currently camped cell, and determine the measured cell state quantity as S REF . It may be that the cell state quantity of the currently camped cell of the latest (or most recent) measurement is determined as S REF before the time of camping on the currently camped cell.
  • the cell state quantity includes a signal power RSRP or a signal quality RSRQ.
  • the coverage of one or more cells in the neighboring cell is greater than the coverage of the currently camped cell.
  • the method further includes:
  • the condition of the cell reselection may be that the coverage of the cell is greater than the coverage of the currently camped cell, and the signal quality or signal power of the cell is greater than the third threshold.
  • the method further includes:
  • a measurement report is sent to the network device, the measurement report including a signal quality RSRQ or a signal power RSRP of the one or more cells.
  • the measurement may be sent to the network device, so that the network device performs cell handover on the terminal according to the signal quality or signal power of one or more cells included in the measurement including.
  • the method further includes:
  • the coverage of the one or more cells is greater than the coverage of the currently camped cell ;
  • the coverage of the one or more cells is greater than the coverage of the currently camped cell
  • the coverage of the one or more cells is greater than the coverage of the currently camped cell
  • the coverage of the one or more cells is greater than the coverage of the currently camped cell. range.
  • a measurement method comprising:
  • the first duration ⁇ t 1 may be any length of time. In this case, the first duration may not exist, that is, the first duration is optional.
  • information indicating the ⁇ t 1 or the first threshold is received from a network device.
  • information indicating the ⁇ t 1 may be received only from the network device, or only information indicating the first threshold may be received, or information indicating the ⁇ t 1 and the first threshold may be received.
  • the cell state quantity includes signal power RSRP or signal quality RSRQ.
  • t REF is the time of camping to the currently camped cell; or, t REF is an update Moment.
  • the method further includes:
  • the first timer is started, and the running time of the first timer is a second duration ⁇ t 2 ;
  • the currently camped cell is measured to obtain ⁇ S i
  • i is a positive integer, i ⁇ N ⁇ , and N is the total number of times the currently camped cell is measured within ⁇ t 2 , S i is the amount of cell state obtained by the i-th measurement;
  • the coverage of the first cell is greater than the coverage of the currently camped cell
  • the method further includes:
  • the second cell is the one or more first A first cell in which the signal quality RSRQ or signal power RSRP is greater than or equal to a third threshold.
  • the coverage of the first cell is greater than the coverage of the currently camped cell
  • the method further includes:
  • a measurement report is sent to the network device, the measurement report including a signal quality RSRQ or a signal power RSRP of the one or more first cells.
  • the coverage of the first cell is greater than the coverage of the currently camped cell by any one of the following manners:
  • the priority of the frequency of the first cell is lower than the priority of the frequency of the currently camped cell
  • the priority of the first cell is lower than the priority of the currently camped cell
  • the frequency of the first cell is lower than the frequency of the currently camped cell
  • the cell type of the first cell is a macro cell, and the cell type of the currently camped cell is a small cell.
  • a measurement method comprising:
  • the signal quality RSRQ or signal power RSRP of one or more of the neighboring cells of the currently camped cell is measured.
  • information indicating the first threshold or the second threshold is received from a network device.
  • the information indicating the first threshold may be received only from the network device, or only information indicating the second threshold may be received, or information indicating the first threshold and the second threshold may be received.
  • the cell state quantity includes signal power RSRP or signal quality RSRQ.
  • t REF is the time of camping to the currently camped cell; or, t REF is an update Moment.
  • the method further includes:
  • the first timer is started, and the running time of the first timer is the second duration ⁇ t 2 ;
  • the currently camped cell is measured to obtain ⁇ S i
  • i is a positive integer, i ⁇ N ⁇ , and N is the total number of times the currently camped cell is measured within ⁇ t 2 , S i is the amount of cell state obtained by the i-th measurement;
  • the coverage of the first cell is greater than the coverage of the currently camped cell
  • the method further includes:
  • the second cell is the one or more first A first cell in which the signal quality RSRQ or signal power RSRP is greater than or equal to a third threshold.
  • the coverage of the first cell is greater than the coverage of the currently camped cell
  • the method further includes:
  • a measurement report is sent to the network device, the measurement report including a signal quality RSRQ or a signal power RSRP of the one or more first cells.
  • the coverage of the first cell is greater than the coverage of the currently camped cell by any one of the following manners:
  • the priority of the frequency of the first cell is lower than the priority of the frequency of the currently camped cell
  • the priority of the first cell is lower than the priority of the currently camped cell
  • the frequency of the first cell is lower than the frequency of the currently camped cell
  • the cell type of the first cell is a macro cell, and the cell type of the currently camped cell is a small cell.
  • a measuring device having a function of realizing the behavior of the measuring method in the first aspect, the second aspect, the third aspect, the fourth aspect or the fifth aspect described above.
  • the measuring device comprises at least one module for implementing the measuring method provided by the first aspect, the second aspect, the third aspect, the fourth aspect or the fifth aspect.
  • a measuring apparatus comprising a processor and a memory, wherein the memory is used for storing the supporting measuring apparatus to perform the first aspect, the second aspect, the third aspect, and the fourth aspect Or the program of the measurement method provided by the fifth aspect, and the data involved in implementing the measurement method provided by the first aspect, the second aspect, the third aspect, the fourth aspect or the fifth aspect described above.
  • the processor is configured to execute a program stored in the memory.
  • the operating device of the storage device may further include a communication bus for establishing a connection between the processor and the memory.
  • the memory may be disposed outside the measuring device, that is, the measuring device includes a processor for coupling with the memory, reading instructions in the memory and executing to implement the above aspects.
  • the measuring device includes a processor for coupling with the memory, reading instructions in the memory and executing to implement the above aspects.
  • a computer readable storage medium stores instructions that, when executed on a computer, cause the computer to perform the first aspect, the second aspect, the third aspect, The measuring method of the fourth aspect or the fifth aspect.
  • a computer program product comprising instructions for causing a computer to perform the measurements of the first aspect, the second aspect, the third aspect, the fourth aspect or the fifth aspect described above when operating on a computer method.
  • the currently camped cell is measured to obtain ⁇ S i
  • the terminal when the terminal determines that the amount of the cell state in the ⁇ t is smaller than the state of the reference cell, on the one hand, the terminal can start the measurement on the neighboring cell, and on the other hand, the terminal can set the S REF. Updated to the last measured cell state quantity S N in ⁇ t, such that if the terminal fails to reselect to other cells after measuring the neighboring cell, the current resident can be measured again based on the updated S REF Whether the cell state quantity in the ⁇ t meets the condition, thereby determining whether to start the measurement of the neighboring cell again, compared with the terminal continuously measuring the neighboring cell, reducing the number of times the terminal measures the neighboring cell, and reducing the terminal function. Consumption.
  • 1A is a system architecture diagram of a measurement method provided by an embodiment of the present application.
  • 1B is a system architecture diagram of another measurement method provided by an embodiment of the present application.
  • FIG. 2 is a schematic structural diagram of a terminal provided by an embodiment of the present application.
  • FIG. 3 is a flow chart of a measurement method provided by an embodiment of the present application.
  • FIG. 5 is a flowchart of a measurement method provided by an embodiment of the present application.
  • FIG. 6 is a flow chart of a measurement method provided by an embodiment of the present application.
  • FIG. 7 is a block diagram of a measuring device according to an embodiment of the present application.
  • FIG. 8 is a block diagram of another measuring device provided by an embodiment of the present application.
  • FIG. 9 is a block diagram of another measuring device provided by an embodiment of the present application.
  • communication signals are usually covered in the form of cells.
  • the cell with a large coverage of the communication signal may be referred to as a macro cell, and the cell with a small coverage of the communication signal may be referred to as a small cell.
  • the terminal can reselect the appropriate cell camp by measuring the signal quality of the cell on different frequencies.
  • the appropriate terminal can also be used.
  • the camped cell is switched by measuring the signal quality of the cells on different frequencies.
  • the measurement method provided by the embodiment of the present application can be used for the terminal to perform cell measurement under appropriate conditions, and perform cell reselection or cell handover according to the measurement result.
  • the measurement method provided by the embodiment of the present application can be applied to the following specific scenarios.
  • the small cell and the macro cell are deployed on different frequencies, and different frequencies are set with different priorities.
  • the frequency of the small cell is higher than the priority of the frequency of the macro cell.
  • the measurement method provided by the embodiment of the present application may be used to measure the neighboring cell, so as to select a suitable cell to camp according to the measurement result, for example, camping on the macro cell, because the macro cell coverage is large, at the terminal.
  • the frequency of replacement of the camped cell by the terminal is decreased compared with the frequency of camping on the small cell to replace the camped cell, and the frequency of updating the camped cell is reduced, and the power consumption of the terminal is reduced.
  • the measurement method provided by the embodiment of the present application may be used to measure the neighboring cell, and then pass the measurement.
  • the reported measurement result is switched to a suitable cell (for example, camping on the macro cell, because the macro cell coverage is large, in the terminal mobile state, the frequency of the terminal changing the camping cell and the camping to the small cell replacement camping cell
  • the frequency of the service will decrease.
  • the frequency of replacement of the serving cell is reduced, that is, the switching is reduced, and the power consumption of the terminal is reduced.
  • the small cell and the macro cell are deployed on the same frequency, the same frequency is set to have the same priority, and the signal quality or signal power of the small cell is better than the signal quality or signal power of the macro cell.
  • the terminal may have a higher signal quality due to the small cell. Reselecting to the small cell, on the basis of this, the terminal frequently replaces the small cell that resides because the small cell coverage is small, and in this process, the measurement is frequently started, and the power consumption of the terminal is increased.
  • the measurement method provided by the embodiment of the present application may be used to measure the neighboring cell, so as to select a suitable cell to camp according to the measurement result, for example, camping on the macro cell, because the macro cell coverage is large.
  • the frequency of the terminal changing the camping cell is decreased compared with the frequency of camping on the small cell to replace the camping cell, and the frequency of updating the camping cell is reduced, and the power consumption of the terminal is reduced.
  • the measurement method provided by the embodiment of the present application may be used to measure the neighboring cell.
  • FIG. 1A is a system architecture diagram of a measurement method provided by an embodiment of the present application.
  • the base station 101 and the terminal 102 can be included in the system architecture.
  • the signal coverage of the base station 101 is a cell corresponding to the base station 101, and the terminal 102 may be an idle state terminal that resides in a cell corresponding to the base station 101, or may be a terminal that has established a communication connection with the base station 101. .
  • the base station 101 may be an E-UTRAN Node B (eNB) or a next generation Node B (gNB) in the 5G communication system.
  • eNB E-UTRAN Node B
  • gNB next generation Node B
  • the base station in the foregoing system architecture may be virtual, that is, as shown in FIG. 1B, part of the functions of the base station in the foregoing system architecture may be in a distributed unit.
  • the 103 Distributed Unit, DU
  • some functions may be in a Centralized Unit (CU) 104, and a base station in each cell may be replaced by a DU 103, and a plurality of DUs 103 may be connected to one CU 104.
  • CU Centralized Unit
  • FIG. 2 is a schematic structural diagram of a terminal 102 according to an embodiment of the present application.
  • the terminal 102 may be a terminal such as a mobile phone, a tablet computer, or the like.
  • the terminal 102 mainly includes a transmitter 1021, a receiver 1022, a memory 1023, a processor 1024, and a communication bus 1025. It will be understood by those skilled in the art that the structure of the terminal 102 shown in FIG. 2 does not constitute a limitation of the terminal 102, and may include more or less components than those illustrated, or combine some components, or different component arrangements. This embodiment of the present application does not limit this.
  • the transmitter 1021 can be used to send data and/or signaling to the base station 101.
  • the receiver 1022 can be configured to receive data and/or signaling, etc., transmitted by the base station 101.
  • the memory 1023 can be used to store the data sent by the base station 101, and the memory 1023 can also be used to store one or more running programs and/or modules for performing the measurement method provided by the embodiment of the present application.
  • the memory 1023 can be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (RAM), or other information that can store information and instructions.
  • EEPROM Electro Scientific Erasable Programmable Read-Only Memory
  • CD-ROM Compact Disc Read-Only Memory
  • optical disc Storage including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.
  • magnetic disk storage media or other magnetic storage devices or capable of carrying or storing desired program code in the form of instructions or data structures and capable of being Any other medium accessed by the integrated circuit, but is not limited thereto.
  • Memory 1023 may be present independently and coupled to processor 1024 via communication bus 1025. Memory 1023 can also be integrated with processor 1024.
  • the processor 1024 is a control center of the terminal 102, and the processor 1024 can be a general central processing unit (CPU), a microprocessor, and an application-specific integrated circuit (ASIC). , or one or more integrated circuits for controlling the execution of the program of the present scheme.
  • the processor 1024 can implement the measurement method provided by the embodiments of the present application by running or executing a software program and/or module stored in the memory 1023 and calling data stored in the memory 1013.
  • processor 1024 and the memory 1023 described above can communicate information over the communication bus 1025.
  • the embodiment of the present application further provides the structure of the base station 101.
  • the base station 101 mainly includes five components: a transmitter, a receiver, a memory, a processor, and a communication bus. It will be understood by those skilled in the art that the above structure of the base station 101 does not constitute a limitation to the base station 101, may include more or less components than the five components, or combine some components, or different component arrangements, this application The embodiment does not limit this.
  • the transmitter, the receiver, the memory, the processor, and the communication bus in the base station 101 have substantially the same functions as the transmitter, the receiver, the memory, the processor, and the communication bus in the terminal 102 in FIG. 2, respectively. No longer elaborated.
  • the terminal may measure the neighboring cell on the currently camped cell by using the measurement method shown in FIG. 3 or FIG. 4, and then reselect the cell according to the measurement result, and then first introduces the first A method for measuring a terminal in an idle state, as shown in FIG. 3, the method may include the following steps:
  • Step 301 The terminal receives information indicating the first duration ⁇ t 1 or the first threshold from the network device.
  • the network device may be a base station of a cell where the terminal is currently camped.
  • the terminal is in an idle state and does not establish a connection with the base station.
  • the base station may broadcast the first time duration ⁇ t 1 or the first threshold.
  • the information may be information indicating only ⁇ t 1 , may be information indicating only the first threshold, or may be information indicating ⁇ t 1 and the first threshold.
  • the terminal can receive the information broadcast by the base station. It should be noted that, in order to facilitate the subsequent description, the first duration is marked by ⁇ t 1 here.
  • this step is an optional step, and the first duration ⁇ t 1 and/or the first threshold may be pre-configured inside the terminal.
  • Step 302 The terminal determines the amount of change in the state of the cell in ⁇ t 1 Whether it is greater than or equal to the first threshold.
  • the cell state quantity includes signal power RSRP or signal quality RSRQ. That is, Is the signal quality or signal power of the currently camped cell measured by the terminal at time t REF , and Then, the signal quality or signal power of the currently camped cell measured by the terminal when t REF + ⁇ t 1 is That is, the terminal measures the amount of change in signal quality or signal power of the currently camped cell within ⁇ t 1 . among them, May be greater than May also be smaller
  • the magnitude of the change in the state of the cell can be characterized by the magnitude of the amount of change in the state of the cell within ⁇ t 1 .
  • the reference time t REF may refer to a moment when the terminal camps on the currently camped cell, or may also refer to the terminal update. Moment.
  • the terminal measures and records the signal quality or signal power of the currently camped cell at the moment of camping on the currently camped cell, and obtains At the same time, timing is performed from this moment, and after ⁇ t 1 is passed, the terminal again measures the signal quality or signal power of the currently camped cell, and obtains Calculation Absolute value of the difference
  • the terminal can be timed by a timer. Specifically, the terminal may start a timer at a time of camping on the currently camped cell, and the running time of the timer is ⁇ t 1 . When the timer runs, the terminal is triggered to measure the signal quality of the currently camped cell again. Or signal power.
  • the terminal can be updated from The time starts to count. After ⁇ t 1 , the terminal measures the signal quality or signal power of the currently camped cell again. Calculate the absolute value of the difference between the two
  • t REF + ⁇ t 1 may be the time at which the terminal performs the last measurement or the time of the most recent measurement, for example, defined as the current time (Current). The result of the most recent measurement or current time measurement.
  • the specific counting manner of the number of changes of the cell in which the terminal resides is exemplified as follows: For example, when the terminal reselects from the cell A to the cell B, the number of changes of the cell in which the terminal resides is 1. If the terminal reselects from cell A to cell B, and then reselects from cell B to cell C, or the terminal reselects from cell A to cell B and reselects from cell B to cell A, the cell in which the terminal resides The number of changes is 2.
  • a first threshold may be a signal quality or signal power
  • the threshold of the change amount or may be the threshold number of cell changes.
  • the terminal may change the amount of signal power or signal quality of the current cell is greater than residing within or by determining the [Delta] t 1 Is equal to the first threshold to determine whether the signal quality or the signal power of the currently camped cell is drastically changed.
  • the terminal may perform step 303. Otherwise, the terminal may perform step 305.
  • the terminal may determine the terminal by determining whether the number of changes of the cell in ⁇ t 1 is greater than or equal to the first threshold. Whether the frequency of reselecting a cell is high. When the number of changes of the cell in which the terminal is located in the ⁇ t 1 is greater than or equal to the first threshold, the frequency of the terminal reselecting the cell is high. In this case, the terminal may perform step 303. Otherwise, the terminal may perform the step. 305.
  • the terminal determines in this step Whether it is greater than or equal to the first threshold is to determine the degree of change of the cell signal or the frequency of the reselection of the cell. Therefore, in a possible implementation manner of the embodiment of the present application, the terminal determines in this step. Whether it is greater than or equal to the first threshold can also be replaced by other implementations.
  • the first threshold that is received by the terminal from the network device may be an initial threshold configured by the network device for the terminal, and after receiving the first threshold, the terminal may perform corresponding to the first threshold. Processing, so as to get the processed threshold, the terminal can The threshold value after the processing is compared to determine the degree of change of the cell signal or the frequency of reselecting the cell.
  • Step 303 If The controller measures the signal quality RSRQ or the signal power RSRP of one or more first cells in the neighboring cells of the currently camped cell, greater than or equal to the first threshold.
  • the signal quality RSRQ is a reference signal received quality (Reference Signal Received Quality), and the signal power RSRP is a reference signal received power (Reference Signal Received Power).
  • step 302 If it is determined by step 302 that it is within ⁇ t 1 If the threshold is greater than or equal to the first threshold, it indicates that the cell signal currently camped by the terminal is more severe or the frequency of the terminal reselecting the cell is higher. If the signal of the cell currently camped by the terminal changes sharply, the terminal may not be able to continue working normally again on the currently camped cell. At this time, the terminal may start measuring the neighboring cell. . If the frequency of the terminal reselecting the cell is high, then the terminal changes the cell too frequently. At this time, the terminal can start measurement on the neighboring cell, so as to reselect and camp on a more suitable cell according to the measurement result.
  • the terminal may measure the signal quality of the one or more first cells in the neighboring cell, where the frequency of the first cell may be the same as or different from the frequency of the currently camped cell, that is, the neighboring cell includes Co-frequency neighboring cells and/or inter-frequency neighboring cells.
  • the terminal can measure the terminal in order to avoid subsequent frequent measurement and reselection of the terminal.
  • the first cell may be a cell whose coverage is larger than the currently camped cell. Since the coverage of the first cell is larger than the coverage of the cell currently camped by the terminal, the terminal can reselect the coverage to the coverage of the currently camped cell by measuring the signal quality or signal power of the first cell. On a large cell, in this way, even if the terminal is in a mobile state, in the case of moving the same distance, the signal change will be slower relative to the cell camping on a smaller coverage area, so that the terminal can be relatively reduced in the cell. The measurement and the number of cell reselections based on the measurement result reduce the power consumption of the terminal.
  • the neighboring cell of the cell currently camped by the terminal may include both the first cell that is larger than the coverage of the currently camped cell, and the cell that has the same coverage or smaller coverage as the currently camped cell.
  • the size of the cell coverage may be represented by the priority of the frequency of each cell, the priority of each cell, the frequency of each cell, or the cell type of each cell.
  • the priority of the frequency of the cell when used to represent the size of the cell coverage, the priority of the frequency of the cell with a larger coverage may be set lower, and the frequency of the cell with a smaller coverage may be prioritized.
  • the level setting is higher.
  • the terminal may receive information indicating the frequency and the priority of the frequency from the network device, such that when the terminal determines When the first threshold is greater than or equal to the first threshold, the first cell with a larger coverage may be selected from the neighboring cells of the currently camped cell according to the priority of the frequency of the cell.
  • the terminal may receive, from the network device, configuration information including at least two frequencies (that is, two or more frequencies) and a priority corresponding to each of the at least two frequencies, where the at least two frequencies include the current station The frequency of the cell that remains.
  • the terminal may select a frequency of a priority lower than a frequency of a currently camped cell from at least two frequencies, and measure a signal quality of one or more first cells deployed in the selected cell on the selected frequency. Since the lower the priority of the frequency, the coverage of the cell deployed on the corresponding frequency is larger, so that the priority of the frequency selected by the terminal from the at least two frequencies is lower than the priority of the frequency of the currently camped cell. That is, the coverage of the cell deployed on the selected frequency is larger than the coverage of the currently camped cell.
  • the terminal measures the cell deployed in the selected cell in the selected frequency, which is actually measuring the neighbor. The first cell in the cell whose coverage is larger than the coverage of the currently camped cell.
  • the priority of the cell with a larger coverage may be set lower, and the priority of the cell with a smaller coverage may be set higher.
  • the terminal may receive information indicating the priority of the cell from the network device, such that when the terminal determines When the first threshold is greater than or equal to the first threshold, the cell with the lower priority than the currently camped cell may be selected as the first cell, and the lower the priority, the larger the coverage, and the priority of the first cell. It is lower than the priority of the currently camped cell, and therefore, the coverage of the first cell will be larger than the currently camped cell.
  • the terminal may receive information indicating the frequency of the cell from the network device, such that when the terminal determines When the first threshold is greater than or equal to the first threshold, the cell whose frequency is lower than the frequency of the currently camped cell may be selected as the first cell, and the lower the frequency, the larger the coverage, and the lower the frequency of the first cell.
  • the frequency of the currently camped cell therefore, the coverage of the first cell will be greater than the currently camped cell.
  • the cell type of the cell with a larger coverage area may be set as a macro cell, and the cell type of the cell with a smaller coverage area may be set as a small cell.
  • the terminal may receive information indicating the cell type of the cell from the network device, such that when the terminal determines When the first threshold is greater than or equal to the first threshold, the cell with the cell type being the macro cell may be selected as the first cell from the neighboring cells.
  • the cell with a larger coverage may be deployed on one or more first frequencies, and the first frequency is set.
  • the corresponding cell type is a macro cell, and the cell with a smaller coverage is deployed on one or more second frequencies, and the cell type corresponding to the second frequency is set to be a small cell.
  • the terminal may receive, from the network device, information including a cell type corresponding to at least two frequencies and each of the at least two frequencies, the at least two frequencies including the frequency of the currently camped cell.
  • the terminal may select a corresponding cell type as a frequency of the macro cell from at least two frequencies, and use one or more cells deployed in the selected cell on the selected frequency as the first cell.
  • the terminal may also start a first timer, where the running duration of the first timer is a second duration ⁇ t 2 .
  • the terminal can continuously measure the currently camped cell and the neighboring cell. If the terminal does not reselect to other cells by measuring the signal of the neighboring cell, it can obtain that the currently camped cell is measured within ⁇ t 2 .
  • i are positive integers, i ⁇ N ⁇ , where N is the total number of measurements of the currently camped cell within ⁇ t 2 , and S i is obtained for the ith measurement The amount of cell status.
  • any S i in i ⁇ N ⁇ is satisfied. Updated by greater than or equal to the first threshold so that Equal to S N . That is to say, in the embodiment of the present application, the terminal may compare all the cell state quantities measured in ⁇ t 2 with Compare, if all the measured state of the cell is If the absolute value of the difference between the two is greater than or equal to the first threshold, the terminal may Update to make the updated Equal to S N , S N is the last measured cell state quantity in ⁇ t 2 of the first timer operation. Alternatively, the end time of ⁇ t 2 may be referred to as the current time (Current), and then S N is the last measured cell state quantity.
  • the terminal can be determined When it is greater than or equal to the first threshold, on the one hand, the measurement of the neighboring cell is started, and on the other hand, the cell state quantity of the currently camped cell within ⁇ t 2 is continuously measured, and the measured cell state quantity and the calculated The difference between the two, so that if the terminal has not successfully reselected to other cells within ⁇ t 2 , then the terminal can be updated by the above method. After that, the terminal can be re-updated to make sure Whether it is greater than or equal to the first threshold, thereby determining whether to start the measurement again, compared to the terminal continuously measuring the neighboring cells, reducing the number of measurements and reducing the power consumption of the terminal.
  • the terminal can start the measurement of the neighboring cell by determining the cell state change by using the measurement method introduced in steps 301-303, so that the signal quality of the currently camped cell is changed compared with the prior art.
  • a method of measuring a certain threshold which reduces the number of measurements.
  • the terminal may further perform cell reselection according to the measurement result by using step 304. In some scenarios, the terminal can reselect to the cell with a larger coverage as much as possible, thereby reducing the number of reselected cells and reducing the power consumption of the terminal.
  • Step 304 If there is a cell in which the signal quality or the signal power is greater than or equal to the third threshold in the one or more first cells, the terminal reselects to the second cell, and the second cell is the signal quality in the one or more first cells. Or a first cell whose signal power is greater than or equal to a third threshold.
  • the terminal may perform the signal quality or signal power according to the signal quality or signal power of the one or more first cells.
  • Cell reselection The terminal may reselect to the cell with the best signal among the one or more first cells.
  • the terminal may use, as the second cell, the first cell in the one or more first cells whose signal quality or signal power is greater than or equal to the third threshold, and reselect to the second cell.
  • the terminal may use the first cell with the highest signal quality or signal power as the second cell, and reselect the second cell to the second cell. on.
  • Step 305 If Less than the first threshold, the terminal re-times at time t REF + ⁇ t 1 , recalculates the amount of change in the cell state quantity, and returns to step 302.
  • the terminal can re-time from the current time, that is, the time t REF + ⁇ t 1 , and the t REF is updated to t REF.
  • the terminal can measure the cell state quantity again, and calculate the measured cell state quantity and the cell state quantity at time t REF The absolute value of the difference between, get After that, the terminal can return to step 302 to re-compare If the size of the first threshold is greater than or equal to the first threshold, steps 303 and 304 may be performed. If the threshold is smaller than the first threshold, the foregoing process may be repeatedly performed.
  • the terminal is determining When it is less than the first threshold, it can also be Updated to And from time t REF + ⁇ t 1 re-timing, at which time t REF is updated to t REF + ⁇ t 1, after passing through the ⁇ t 1, i.e. the time t REF + ⁇ t 1, the terminal may re-measured cell state quantity, and Calculate the measured cell status The amount of cell state at time t REF The absolute value of the difference between, get After that, the terminal can return to step 302 to compare again.
  • steps 303 and 304 are performed, and when less than the first threshold, the above process is continued.
  • the terminal can perform timing by setting a timer.
  • the terminal may further update the first threshold. For example, the terminal may subtract the specified threshold from the first threshold as a new first threshold, and then The amount of change in the state quantity is compared to the updated first threshold.
  • the terminal may determine whether the amount of change of the cell state quantity in the first time period is greater than or equal to the first threshold. If the value is greater than or equal to the first threshold, the terminal may measure the neighboring cell in the currently camped cell. Signal quality or signal power of one or more first cells. That is, in the embodiment of the present application, the terminal may determine, according to the magnitude of the change amount of the cell state quantity in the first duration, whether to initiate measurement of the neighboring cell of the currently camped cell, but within the first duration. The amount of change of the cell state quantity actually reflects whether the cell state change is severe.
  • the terminal starts the measurement of the neighboring cell when determining that the cell state changes are severe, compared with
  • the method for measuring the change of the signal quality of the currently camped cell reaches a certain threshold, that is, the measurement, reduces the number of measurements, and reduces the power consumption of the terminal.
  • the one or more first cells measured by the terminal may be a cell whose coverage is larger than the currently camped cell, and then, if the measured signal quality or signal power of the one or more first cells is If there is a cell whose signal quality or signal power is greater than or equal to the third threshold, the terminal may reselect to the second cell, where the second cell is the signal quality or signal power of the one or more first cells that is greater than or equal to the third threshold.
  • a first cell is the second cell whose signal quality or signal power of the one or more first cells that is greater than or equal to the third threshold.
  • the method includes the following steps:
  • Step 401 The terminal receives information indicating a first threshold or a second threshold from the network device.
  • the network device may be a base station of a cell where the terminal is currently camped, and the terminal is in an idle state, and does not establish a connection with the base station.
  • the base station may broadcast information indicating the first threshold or the second threshold.
  • the information may be information indicating only the first threshold, may be information indicating only the second threshold, or may be information indicating the first threshold and the second threshold.
  • the terminal can receive the information broadcast by the base station.
  • the first threshold may be a threshold of a change in signal quality, a threshold of a change in signal power, or a threshold value of a cell change.
  • the second threshold is then the time threshold.
  • this step is an optional step, and the first threshold and/or the second threshold may be pre-configured inside the terminal.
  • Step 402 If the amount of change ⁇ S of the cell state quantity is greater than or equal to the first threshold, determine whether the duration ⁇ t ⁇ S experienced when the ⁇ S is reached is less than or equal to the second threshold.
  • the cell state quantity includes signal power RSRP or signal quality RSRQ.
  • the signal quality RSRQ is a reference signal received quality (Reference Signal Received Quality)
  • the signal power RSRP is a reference signal received power (Reference Signal Received Power).
  • the terminal may measure the cell state quantity of the currently camped cell once at the reference time t REF
  • the terminal can start a timer, after which the terminal can continuously measure the cell state quantity of the currently camped cell, and after each measurement, calculate the currently measured cell state quantity and the cell measured at the reference time t REF .
  • the terminal may acquire, by using a timer, from the reference time t REF to the current time (that is, the time when the amount of change of the cell state amount reaches ⁇ S) The elapsed time ⁇ t ⁇ S and determine whether ⁇ t ⁇ S is less than or equal to the second threshold.
  • the terminal can measure the cell state quantity after the reference time t REF in real time, so as to acquire the change amount of the cell state quantity in real time, and determine the cell by the elapsed time when the amount of change of the cell state quantity reaches the first threshold.
  • the severity of the state change is compared with the amount of cell state measured directly at the end time of a certain time length, and the amount of change of the state of the cell state is calculated, thereby determining the severity of the change of the state of the cell according to the magnitude of the change amount of the state of the cell state. More accurate.
  • the reference time t REF may refer to the moment when the terminal camps on the currently camped cell, or may refer to the terminal update. Moment.
  • t REF + ⁇ t ⁇ S may be the time at which the terminal performs the last measurement or the time of the most recent measurement, for example, defined as the current time (Current). The result of the most recent measurement or current time measurement.
  • the terminal measures and records the signal quality or signal power of the currently camped cell at the moment of camping on the currently camped cell, and obtains At the same time, starting from this moment, the terminal continuously measures the signal quality or signal power of the currently camped cell, and obtains each measurement. At the time, the absolute value ⁇ S of the difference between the two is calculated.
  • the terminal can update The time begins with the time as the reference time, and the amount of cell state measured at that time is updated. After that, the terminal continuously measures the signal quality or signal power of the currently camped cell and obtains each measurement. At the time, the absolute value ⁇ S of the difference between the two is calculated.
  • the terminal can further determine the time ⁇ t ⁇ S used for the change so large, if ⁇ t ⁇ S is less than or equal to the first
  • the second threshold indicates that the cell state changes greatly in a relatively short period of time, that is, the cell state changes are severe. In this case, the terminal may perform step 403. Otherwise, the terminal may perform step 405.
  • the first threshold and the second threshold in this step are mainly used to determine whether the cell state change is severe.
  • the step may be replaced by other implementation manners.
  • the first threshold or the second threshold that is received by the terminal from the network device may be an initial threshold configured by the network device for the terminal, and after receiving the first threshold or the second threshold, the terminal may Performing corresponding processing on the first threshold or the second threshold to obtain a processed threshold, the terminal may compare ⁇ S with the processed first threshold, or compare ⁇ t ⁇ S with the processed threshold to determine the cell Whether the state changes drastically.
  • Step 403 Measure the signal quality RSRQ or the signal power RSRP of one or more first cells in the neighboring cells of the currently camped cell if ⁇ t ⁇ S is less than or equal to the second threshold.
  • step 402 If it is determined by step 402 that ⁇ t ⁇ S is less than or equal to the second threshold, it indicates that the cell signal currently camped by the terminal changes sharply. In this case, the terminal may not be able to continue working normally again on the currently camped cell. At this time, the terminal can initiate measurement of the neighboring cell to reselect and camp on a more suitable cell according to the measurement result.
  • the terminal may measure the signal quality or signal power of one or more first cells in the neighboring cells of the currently camped cell, where the first cell may be the same frequency as the currently camped cell in the neighboring cell or Different communities.
  • the first cell may also be a cell whose coverage is greater than the coverage of the cell where the terminal currently camps.
  • the specific implementation manner of the terminal measuring one or more first cells in the neighboring cell may refer to the steps in the foregoing embodiment.
  • the related implementation manners in 303 are not described in detail in this embodiment of the present application.
  • the terminal may further start a first timer, where the running time of the first timer is a second duration ⁇ t 2 , and within ⁇ t 2 , the terminal may The camped cell performs measurement.
  • the terminal does not reselect to other cells by measuring the signal of the neighboring cell, the plurality of cell state quantities measured in ⁇ t 2 ⁇ S i
  • the terminal may compare all the cell state quantities measured in ⁇ t 2 with Compare, if all the measured state of the cell is If the absolute value of the difference between the two is greater than or equal to the first threshold, the terminal may Update to make the updated Equal to S N , S N is the last measured cell state change amount within ⁇ t 2 of the first timer operation.
  • the end time of ⁇ t 2 may be referred to as the current time (Current), and then S N is the last measured cell state quantity.
  • the terminal can start the measurement of the neighboring cell by determining the cell state change by using the measurement method introduced in steps 401-403, so that the signal quality of the currently camped cell is changed compared with the prior art.
  • a method of measuring a certain threshold which reduces the number of measurements.
  • the terminal may perform cell reselection according to the measurement result in step 404, so that the terminal can reselect to the cell with a larger coverage as much as possible, thereby reducing reselection.
  • the number of cells reduces the power consumption of the terminal.
  • Step 404 If there is a cell in which signal quality or signal power is greater than or equal to a third threshold in one or more first cells, the terminal reselects to the second cell, and the second cell is a signal quality in one or more first cells. Or a first cell whose signal power is greater than or equal to a third threshold.
  • step 304 For the specific implementation of this step, reference may be made to the specific implementation in step 304 in the foregoing embodiment, and details are not described herein again.
  • the terminal may receive information indicating the first threshold and the second threshold from the network device, and then the terminal may determine whether the amount of change ⁇ S of the cell state quantity is greater than or equal to the first threshold, if ⁇ S is greater than or equal to the first a threshold, the terminal may further determine whether the duration of time when the ⁇ S is reached is less than or equal to the second threshold. If the second threshold is less than or equal to the second threshold, the cell state changes greatly in a short period of time. In this case, the terminal can initiate measurement of the neighboring cell, so that the terminal can reselect and camp on a more suitable cell according to the measurement result.
  • the terminal in the present application starts the measurement of the neighboring cell when the cell state changes sharply, the measurement is started as long as the cell state changes greatly, and the number of measurements is reduced. This reduces the number of times the cell is reselected. Further, in the present application, since the cell is reselected to the cell whose coverage is larger than the current camping cell by measuring only the cell with a larger coverage in the neighboring cell, the terminal is moving even when the cell is reselected. In the state, because the cell coverage of the reselected cell is large, the signal quality will not change drastically due to the small distance of the mobile, and the cell measurement or reselection will not be performed frequently, thereby reducing the cell for the terminal. The number of measurements and reselections reduces terminal power consumption.
  • the foregoing embodiment mainly introduces a specific implementation process for a terminal in an idle state, where the terminal measures a neighboring cell on a currently camped cell, and then reselects to another cell according to the measurement result, and for the connected terminal, Since the terminal has established a communication connection with the base station of the currently camped cell, the terminal can measure the neighboring cell by using the two measurement methods shown in FIG. 5 or FIG. 6, and report the measurement result from the currently camped cell. Switch to another cell.
  • the measurement method of the first connected state terminal is first introduced. As shown in FIG. 5, the method includes the following steps:
  • Step 501 The terminal receives information indicating the first duration ⁇ t 1 or the first threshold from the network device.
  • the network device may be a base station of a cell where the terminal is currently camped, and the terminal is in a connected state, that is, the terminal establishes a communication connection with the base station of the currently camped cell.
  • the base station may The terminal transmits information indicating the first duration or the first threshold.
  • the terminal may receive information sent by the base station indicating the first duration or the first threshold.
  • this step is an optional step, and the first duration ⁇ t 1 and/or the first threshold may be pre-configured inside the terminal.
  • Step 502 The terminal determines the amount of change in the state quantity of the ⁇ t 1 cell Whether it is greater than or equal to the first threshold.
  • step 302 For the specific implementation of this step, reference may be made to step 302, and details are not described herein again.
  • Step 503 If The controller measures the signal quality RSRQ or the signal power RSRP of one or more first cells in the neighboring cells of the currently camped cell, greater than or equal to the first threshold.
  • the first cell may be a cell in the neighboring cell that has the same or different frequency as the currently camped cell.
  • the first cell may also be the coverage of the neighboring cell than the currently camped cell.
  • a large area of the community may also be the coverage of the neighboring cell than the currently camped cell.
  • step 303 For the specific implementation of this step, reference may be made to step 303, and details are not described herein again.
  • Step 504 The terminal sends a measurement report to the base station, where the measurement report includes signal quality or signal power of one or more first cells.
  • the terminal may send a measurement report to the base station, where the measurement report may include a signal of each of the first cells in the one or more first cells. Quality or signal power.
  • the coverage of the first cell is larger than that of the currently camped cell, so that the terminal directly
  • the base station reports the signal quality or the signal power of the first cell, so that the base station can directly switch to the first cell with a larger coverage according to the signal quality of the first cell, thereby avoiding that the terminal always switches to the coverage during the mobile process. Frequent measurement, reporting, and handover caused by a small-area cell reduces power consumption of the terminal and reduces signaling overhead between the terminal and the base station.
  • the terminal may not report the signal quality or signal power of each first cell, but may selectively report the signal. Signal quality or signal power of a portion of one or more of the first cells.
  • the terminal may select one or more first cells of the first cell to report the higher quality of the first cell. Specifically, the terminal may select a signal quality or a signal power greater than a third threshold from the signal quality or signal power of the one or more first cells for reporting. In this way, if the coverage of the first cell is larger than the coverage of the currently camped cell, the base station can be directly switched to the first cell with a large coverage and good signal quality or signal power.
  • Step 505 When the base station receives the measurement report sent by the terminal, the base station determines the second cell according to the signal quality or signal power of the one or more first cells included in the measurement report, and sends a first message to the terminal, where the first message is sent. And configured to indicate that the terminal switches to the second cell, where the second cell is one of the one or more first cells.
  • the second cell may be determined according to the signal quality or signal power of the one or more first cells included in the measurement report.
  • the base station may also determine the second cell in different manners according to different measurement reports sent by the terminal.
  • the measurement report reported by the terminal includes signal quality or signal power of each first cell in one or more first cells, in this case, the base station
  • the first cell with the signal quality or the signal power greater than or equal to the third threshold may be selected from the one or more first cells as the second cell, and if there are multiple first cells with the signal quality or the signal power greater than the third threshold, The second cell in which the signal quality or the signal power is the highest is selected.
  • the measurement report reported by the terminal includes the signal quality or signal power of the first cell in which the signal quality or the signal power in the first cell is greater than or equal to the third threshold.
  • the base station may The first cell with the highest signal quality or signal power is selected as the second cell.
  • the base station may send a first message to the terminal, where the first message is used to indicate that the terminal switches from the currently camped cell to the second cell.
  • the base station when performing cell handover, the base station considers many factors, and sometimes the base station may not perform cell handover by using the measurement report reported by the terminal, so this step is an optional step.
  • Step 506 The terminal receives the first message from the base station, and switches to the second cell according to the first message.
  • Step 507 If Less than the first threshold, the terminal re-times at time t REF + ⁇ t 1 , recalculates the amount of change in the cell state quantity, and returns to step 502.
  • step 305 For the specific implementation of this step, reference may be made to the specific implementation in step 305, and details are not described herein again.
  • the terminal may determine the amount of change of the cell state in ⁇ t 1 Whether it is greater than or equal to the first threshold, if The greater than or equal to the first threshold, the terminal may directly measure the signal quality or signal power of one or more of the neighboring cells of the currently camped cell. Afterwards, the terminal may send a measurement report to the base station according to the signal quality or signal power of the one or more first cells, so that the base station sends, according to the measurement report, a first message for indicating that the terminal switches to the second cell, where the second cell It is a first cell in one or more first cells.
  • the terminal measures the signal of the neighboring cell.
  • the quality or the signal power is reported to the base station.
  • the terminal measures and reports the base station, which reduces the number of measurements and reduces the number of times the terminal reports the base station, thereby saving signaling. Overhead.
  • the terminal can directly measure the signal quality of the first cell with a large coverage and report it to the base station, so that the base station can directly switch the terminal to a larger coverage area according to the reported signal quality or signal power.
  • the cell in this way, when the terminal moves, it will not cause a drastic change in signal quality due to moving a small distance, and naturally, cell measurement or handover is not performed frequently, thereby further reducing the cell measurement and the terminal.
  • the number of handovers reduces the power consumption of the terminal, and at the same time, reduces the number of times the signal quality is reported by the terminal, thereby reducing signaling overhead.
  • the method includes the following steps:
  • Step 601 The terminal receives information indicating the first threshold or the second threshold from the network device.
  • the network device may be a base station of a cell where the terminal is currently camped, and the terminal is in a connected state, that is, the terminal establishes a communication connection with the base station of the currently camped cell.
  • the base station may The terminal transmits information indicating a first threshold or a second threshold.
  • the terminal may receive information sent by the base station indicating the first threshold or the second threshold.
  • this step is an optional step, and the first threshold and/or the second threshold may be pre-configured inside the terminal.
  • Step 602 If the amount of change ⁇ S of the cell state quantity is greater than or equal to the first threshold, determine whether the duration ⁇ t ⁇ S experienced when the ⁇ S is reached is less than or equal to the second threshold.
  • step 402 For the specific implementation of this step, reference may be made to step 402, and details are not described herein again.
  • Step 603 If ⁇ t ⁇ S is less than or equal to the second threshold, measure signal quality RSRQ or signal power RSRP of one or more first cells in the neighboring cell of the currently camped cell.
  • the first cell may be a cell in the neighboring cell that has the same or different frequency as the currently camped cell.
  • the first cell may also be the coverage of the neighboring cell than the currently camped cell.
  • a large area of the community may also be the coverage of the neighboring cell than the currently camped cell.
  • step 403 For the specific implementation of this step, reference may be made to step 403, and details are not described herein again.
  • Step 604 The terminal sends a measurement report to the base station, where the measurement report includes signal quality RSRQ or signal power RSRP of the one or more first cells.
  • Step 605 When the base station receives the measurement report sent by the terminal, the base station determines the second cell according to the signal quality or signal power of the one or more first cells included in the measurement report, and sends a first message to the terminal, where the first message is sent. And configured to indicate that the terminal switches to the second cell, where the second cell is one of the one or more first cells.
  • the base station when performing cell handover, the base station considers many factors, and sometimes the base station may not perform cell handover by using the measurement report reported by the terminal, so this step is an optional step.
  • Step 606 The terminal receives the first message from the base station, and switches to the second cell according to the first message.
  • the terminal may determine whether the amount of change ⁇ S of the cell state quantity is greater than or equal to the first threshold. If ⁇ S is greater than or equal to the first threshold, the terminal may further determine whether the duration experienced by reaching ⁇ S is less than or It is equal to the second threshold. If it is less than or equal to the second threshold, it indicates that the cell state changes greatly in a short time. In this case, the terminal can initiate measurement on the neighboring cell. The terminal may send a measurement report to the base station according to the measured signal quality or signal power of the one or more first cells, so that the base station sends, according to the measurement report, a first message for instructing the terminal to switch to the second cell, where The second cell is a first one of the one or more first cells.
  • the terminal measures the signal quality of the neighboring cell. Or the signal power is reported to the base station.
  • the terminal measures and reports the base station, which reduces the number of measurements and reduces the number of times the terminal reports the base station, thereby saving signaling overhead.
  • the terminal can directly measure the signal quality of the first cell with a large coverage, and report the signal to the base station, so that the base station can directly switch the terminal to the cell with a larger coverage according to the reported signal quality.
  • the signal quality does not change drastically due to moving a small distance, and naturally, cell measurement or handover is not performed frequently, thereby further reducing the number of times the terminal performs cell measurement and handover.
  • the power consumption of the terminal is reduced, and at the same time, the number of times the signal quality is reported by the terminal is reduced, thereby reducing the signaling overhead.
  • the terminal may start measuring the currently camped cell at the moment of camping on the currently camped cell, and determine the measured cell state quantity as S REF , and the terminal is in the ⁇ t time.
  • the currently camped cell performs continuous measurement, resulting in ⁇ S i
  • the terminal may calculate S REF -S i every time the S i is obtained, and determine whether S REF -S i is greater than or equal to the first threshold, or the terminal may calculate S i -S REF and determine S Whether i -S REF is less than or equal to the first threshold. That is, in the present application, the expression of the same AB can be replaced by BA.
  • the terminal may update S REF at the end of ⁇ t, so that S REF is equal to the last measured value S N within ⁇ t and the measurement of the neighboring cell is initiated so that the terminal can reselect or switch to the cell with better signal.
  • the foregoing S REF may also be the signal quality or signal power of the currently camped cell measured by the terminal at other times, or may be camped on the currently camped cell.
  • the cell state quantity of the currently camped cell that is the latest (or most recently) measured is determined as S REF , which is not specifically limited in this embodiment of the present application.
  • the time at which the terminal measures the S N may be the current time (Current), and the S N is the current cell state quantity or the most recently measured cell state quantity.
  • the currently camped cell may also be referred to as a serving cell, and the reference cell state quantity is a reference cell state quantity or a reference value of a cell state quantity, and the pair of currently camped
  • the measurement by neighboring cells of the cell also includes measuring the same frequency and/or different frequency.
  • the terminal when the terminal determines that the cell state quantity in ⁇ t is smaller than the reference cell state quantity, on the one hand, the terminal can start measurement on the neighboring cell, and on the other hand, the terminal can update S REF to ⁇ t.
  • the last measured cell state quantity S N such that if the terminal fails to reselect to other cells after measuring the neighboring cell, the current camped cell can be measured again within ⁇ t based on the updated S REF Whether the cell state quantity satisfies the condition, thereby determining whether to start the measurement of the neighboring cell again, compared with the terminal continuously measuring the neighboring cell, reducing the number of times the terminal measures the neighboring cell, and reducing the terminal power consumption.
  • the second mode measuring the currently camped cell to obtain the current cell state quantity S current ; if S current -S REF is greater than or equal to the second threshold, updating S REF such that S REF is equal to S current , S REF is The reference cell state quantity of the currently camped cell; wherein, if S REF -S current is greater than or equal to the first threshold, the neighboring cell of the currently camped cell is measured.
  • the terminal may compare the measured cell state quantity S current with the reference state quantity S REF of the currently camped cell after each measurement of the cell state quantity, if S current —S REF is greater than or If the second threshold is equal to the second threshold, it indicates that the amount of increase of the cell state quantity has reached the second threshold, that is, the signal power or signal quality of the currently camped cell does not decrease.
  • the terminal does not have to The neighbor cell is measured, but S REF is updated to S current , and then the cell state quantity of the currently camped cell is continuously measured and compared with the updated S REF to improve the signal quality of the currently camped cell.
  • the measurement of the neighboring cell is started in time.
  • the terminal can initiate measurement of the neighboring cell of the currently camped cell, so that the terminal can reselect or switch the cell according to the measurement result.
  • the current cell state quantity S current is the current value of the current (Current) cell state quantity or cell state quantity or the latest value of the cell state quantity or the last measurement value of the cell state quantity.
  • the terminal can compare the measured cell state quantity with the reference cell state quantity in real time, and start the measurement of the neighboring cell in time when the cell state quantity change amount reaches the threshold, thereby enabling the terminal to be in the cell.
  • Cell reselection or handover is performed more timely when the signal is degraded.
  • the third way within ⁇ t, the currently camped cell is measured to obtain ⁇ S i
  • the average value of ⁇ N ⁇ , S REF is the reference cell state quantity of the currently camped cell; wherein, if S REF —S i is greater than or equal to the first threshold, the neighboring cell of the currently camped cell is measured.
  • the terminal may measure the cell state quantity S REF of the currently camped cell when camping on the currently camped cell, and the terminal continuously measures the currently camped cell in the ⁇ t time, thereby obtaining ⁇ S i
  • i is a positive integer, i ⁇ N ⁇ .
  • the terminal saves N S i , wherein the terminal can save the current terminal ⁇ S 1 , S 2 , S 3 ... S N-1 , S when each measurement obtains a new S i (denoted as S N+1 ).
  • N ⁇ is replaced by ⁇ S 2 , S 3 ... S N-1 , S N , S N+1 ⁇ to obtain new ⁇ S 1 , S 2 , S 3 ...
  • the terminal may also calculate S REF -S i , if ⁇ S i
  • the neighboring cell may be measured by referring to the related measurement manner of the neighboring cell introduced in the foregoing embodiment.
  • the signal quality or the signal power, and the cell reselection or switching is performed according to the measured signal quality or signal power of the neighboring cell according to the method of reselecting or switching the cell, which is described in the foregoing embodiment. Let me repeat.
  • FIG. 7 is a block diagram of an apparatus for reselecting a cell according to an embodiment of the present disclosure.
  • the apparatus is applied to a terminal.
  • the apparatus 700 includes a first measurement module 701, an update module 702, and a second measurement module. 703.
  • the first measurement module 701 is configured to measure the currently camped cell within ⁇ t to obtain ⁇ S i
  • i is a positive integer, i ⁇ N ⁇ , where N is a measurement of the currently camped cell within ⁇ t
  • S i is the amount of cell state obtained by the ith measurement;
  • the updating module 702 is configured to update S REF such that S REF is equal to S N if S S i
  • REF is the reference cell state quantity of the currently camped cell;
  • the second measurement module 703 is configured to measure a neighboring cell of the currently camped cell if S REF —S i is greater than or equal to the first threshold.
  • the device further includes:
  • a receiving module configured to receive, from the network device, information for indicating ⁇ t, or for indicating information of the first threshold.
  • the device further includes:
  • the acquisition module is configured to acquire S REF after reselecting or selecting to the currently camped cell.
  • the cell state quantity includes signal power RSRP or signal quality RSRQ.
  • the coverage of one or more cells in the neighboring cell is greater than the coverage of the currently camped cell.
  • the device further includes:
  • the reselection module is configured to reselect to the first cell if the first cell in the neighboring cell satisfies the condition of cell reselection.
  • the device further includes:
  • a sending module configured to send a measurement report to the network device, where the measurement report includes a signal quality RSRQ or a signal power RSRP of one or more cells.
  • the coverage of the one or more cells is greater than the coverage of the currently camped cell
  • the coverage of the one or more cells is greater than the coverage of the currently camped cell
  • the coverage of one or more cells is greater than the coverage of the currently camped cell
  • the coverage of one or more cells is greater than the coverage of the currently camped cell.
  • FIG. 8 is a block diagram of an apparatus for reselecting a cell according to an embodiment of the present disclosure.
  • the apparatus is applied to a terminal.
  • the apparatus 800 includes a first measurement module 801, an update module 802, and a second measurement module. 803.
  • the first measurement module 801 is configured to perform measurement on the currently camped cell to obtain a current cell state quantity S current ;
  • the updating module 802 is configured to: if S current -S REF is greater than or equal to the second threshold, update S REF such that S REF is equal to S current , and S REF is a reference cell state quantity of the currently camped cell;
  • the second measurement module 803 is configured to measure a neighboring cell of the currently camped cell if S REF —S current is greater than or equal to the first threshold.
  • the device further includes:
  • a receiving module configured to receive, from the network device, information used to indicate a first threshold, or information used to indicate a second threshold.
  • the device further includes:
  • the acquisition module is configured to acquire S REF after reselecting or selecting to the currently camped cell.
  • the cell state quantity includes signal power RSRP or signal quality RSRQ.
  • the coverage of one or more cells in the neighboring cell is greater than the coverage of the currently camped cell.
  • the device further includes:
  • the reselection module is configured to reselect to the first cell if the first cell in the neighboring cell satisfies the condition of cell reselection.
  • the device further includes:
  • a sending module configured to send a measurement report to the network device, where the measurement report includes a signal quality RSRQ or a signal power RSRP of one or more cells.
  • the coverage of the one or more cells is greater than the coverage of the currently camped cell
  • the coverage of one or more cells is greater than the coverage of the currently camped cell
  • the coverage of one or more cells is greater than the coverage of the currently camped cell
  • the coverage of one or more cells is greater than the coverage of the currently camped cell.
  • FIG. 9 is a block diagram of an apparatus for reselecting a cell according to an embodiment of the present application.
  • the apparatus is applied to a terminal.
  • the apparatus 900 includes a first measurement module 901, an update module 902, and a second measurement module. 903.
  • the first measurement module 901 is configured to measure the currently camped cell within ⁇ t to obtain ⁇ S i
  • i is a positive integer, i ⁇ N ⁇ , and N is a measurement of the currently camped cell within ⁇ t.
  • the total number of times, S i is the amount of cell state obtained by the ith measurement;
  • the updating module 902 is configured to update S REF such that S REF is equal to ⁇ S i
  • the second measurement module 903 is configured to measure a neighboring cell of the currently camped cell if S REF —S i is greater than or equal to the first threshold.
  • the device further includes:
  • a receiving module configured to receive, from the network device, information for indicating ⁇ t, or for indicating information of the first threshold.
  • the device further includes:
  • the acquisition module is configured to acquire S REF after reselecting or selecting to the currently camped cell.
  • the cell state quantity includes signal power RSRP or signal quality RSRQ.
  • the coverage of one or more cells in the neighboring cell is greater than the coverage of the currently camped cell.
  • the device further includes:
  • the reselection module is configured to reselect to the first cell if the first cell in the neighboring cell satisfies the condition of cell reselection.
  • the device further includes:
  • a sending module configured to send a measurement report to the network device, where the measurement report includes a signal quality RSRQ or a signal power RSRP of one or more cells.
  • the coverage of the one or more cells is greater than the coverage of the currently camped cell
  • the coverage of the one or more cells is greater than the coverage of the currently camped cell
  • the coverage of one or more cells is greater than the coverage of the currently camped cell
  • the coverage of one or more cells is greater than the coverage of the currently camped cell.
  • the embodiment of the present application further provides a corresponding communication device.
  • the structure of the communication device can be referred to FIG. 2 and related description.
  • the communication device can include a processor or can also include a memory.
  • the processor is operative to couple with a memory to read and execute instructions in the memory to implement the methods of the above embodiments.
  • the measuring device provided by the foregoing embodiment is only illustrated by the division of each functional module in the cell measurement. In actual applications, the function allocation may be completed by different functional modules according to requirements, that is, the internal structure of the device is divided. Different functional modules to complete all or part of the functions described above.
  • the measurement device provided by the foregoing embodiment is the same as the embodiment of the measurement method in the foregoing embodiment, and the specific implementation process is described in detail in the method embodiment, and details are not described herein again.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be wired from a website site, computer, server or data center (for example: coaxial cable, fiber, Digital Subscriber Line (DSL)) or wireless (eg infrared, wireless, microwave, etc.) to another website, computer, server or data center.
  • the computer readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a Digital Versatile Disc (DVD)), or a semiconductor medium (for example, a Solid State Disk (SSD)). Wait.
  • a magnetic medium for example, a floppy disk, a hard disk, a magnetic tape
  • an optical medium for example, a Digital Versatile Disc (DVD)
  • DVD Digital Versatile Disc
  • SSD Solid State Disk
  • a computer readable storage medium which, when run on a computer, causes the computer to perform the steps of the measurement method provided in the foregoing embodiments.
  • a person skilled in the art may understand that all or part of the steps of implementing the above embodiments may be completed by hardware, or may be instructed by a program to execute related hardware, and the program may be stored in a computer readable storage medium.
  • the storage medium mentioned may be a read only memory, a magnetic disk or an optical disk or the like.

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Abstract

本申请提供了一种测量方法及装置,涉及通信领域,该方法包括:在Δt内,对当前驻留的小区进行测量,终端在Δt内的小区状态量较参考小区状态量减小时,启动对相邻小区的测量,并将参考小区状态量更新为Δt内最后一次测得的小区状态量,若终端在测量相邻小区之后,未成功重选到其他小区上,则基于更新后的参考小区状态量再次测量当前驻留的小区在Δt内的小区状态量是否满足条件,从而确定是否再次启动对相邻小区的测量,相对持续测量相邻小区而言,减少测量次数,降低终端功耗。

Description

一种测量方法及装置 技术领域
本申请涉及通信技术领域,特别涉及一种测量技术。
背景技术
在长期演进(Long Term Evolution,LTE)、第五代移动通信技术(5th-Generation,5G)等通信系统中,通信信号通常以小区的形式进行覆盖。其中,可以将通信信号覆盖面积较大的小区称为宏小区,而将通信信号覆盖面积较小的小区称为小小区。其中,小小区和宏小区可以部署在不同的频率上,也可以部署在相同的频率上。终端在选择驻留的小区时可以通过测量不同频率上小区的信号质量来选择小区。
相关技术中,当终端驻留到某个小区时,可以接收当前驻留的小区的基站广播或发送的用于启动测量的阈值,并在测量到当前驻留的小区的信号质量或信号功率小于该阈值时启动对当前驻留的小区的相邻小区的测量,在这种情况下,如果该阈值较低,则终端不能及时启动对相邻小区的测量,从而也就无法及时重选到信号更好的小区上。如果该阈值较高,则终端启动测量的时机较早,增加了终端的测量功耗。
发明内容
为了解决相关技术中终端根据阈值启动小区测量时启动时机过晚及时性较差、启动过早终端功耗较高的问题,本申请提供了一种测量方法、装置及计算机存储介质。该技术方案如下:
第一方面,提供了一种测量方法,该方法包括:
在Δt内,对当前驻留的小区进行测量,以获得{S i|i为正整数,i≤N},N为Δt内对所述当前驻留的小区进行测量的总次数,S i为第i次测量获得的小区状态量;
若{S i|i为正整数,i≤N}中任意S i满足S REF-S i大于或等于所述第一阈值,则更新S REF以使S REF等于S N,S REF为所述当前驻留的小区的参考小区状态量;其中,若S REF-S i大于或等于所述第一阈值,对所述当前驻留的小区的相邻小区进行测量。
在本申请实施例中,终端在确定Δt内的小区状态量较参考小区状态量均减小时,一方面,终端可以启动对相邻小区的测量,另一方面,终端可以将S REF更新为Δt内最后一次测得的小区状态量S N,这样,若终端在测量相邻小区之后,未能成功重选到其他小区上,则可以基于更新后的S REF再次测量当前驻留的小区在Δt内的小区状态量是否满足条件,从而确定是否再次启动对相邻小区的测量,相较于终端持续测量相邻小区而言,减少了终端测量相邻小区的次数,降低了终端功耗。
可选地,所述方法还包括:从网络设备接收用于指示Δt的信息,或者用于指示所述第一阈值的信息。
可选地,所述方法还包括:在小区重选到或选择到当前驻留的小区后,获取S REF
其中,终端可以从网络设备获取该S REF,也可以在驻留到当前驻留的小区的时刻测量当前驻留的小区的小区状态量,并将测得的小区状态量确定为S REF,还可以是在驻留到当前驻留的小区的时刻之前,将最新(或最近)一次测量的当前驻留的小区的小区状态量确定为S REF
可选地,所述小区状态量包括信号功率RSRP或信号质量RSRQ。
可选地,所述相邻小区中的一个或多个小区的覆盖范围大于所述当前驻留的小区的覆盖范围。
可选地,所述方法还包括:
若所述相邻小区中的第一小区满足小区重选的条件,重选到所述第一小区。
其中,小区重选的条件可以是指小区的覆盖范围大于当前驻留的小区的覆盖范围,且小区的信号质量或信号功率大于第三阈值。
可选地,所述方法还包括:
向网络设备发送测量报告,所述测量报告包括所述一个或多个小区的信号质量RSRQ或信号功率RSRP。
对于连接态的终端,在测量相邻小区之后,可以向网络设备发送测量报告,以便网络设备根据该测量报告中包括的一个或多个小区的信号质量或信号功率对终端进行小区切换。
可选地,所述方法还包括:
若所述一个或多个小区的频率的优先级低于所述当前驻留的小区的频率的优先级,则所述一个或多个小区的覆盖范围大于所述当前驻留的小区的覆盖范围;或者,
若所述一个或多个小区的优先级低于所述当前驻留的小区的优先级,则所述一个或多个小区的覆盖范围大于所述当前驻留的小区的覆盖范围;或者,
若所述一个或多个小区的频率低于所述当前驻留的小区的频率,则所述一个或多个小区的覆盖范围大于所述当前驻留的小区的覆盖范围;或者,
若所述一个或多个小区的小区类型为宏小区,所述当前驻留的小区的小区类型为小小区,则所述一个或多个小区的覆盖范围大于所述当前驻留的小区的覆盖范围。
第二方面,提供一种测量方法,所述方法包括:
对当前驻留的小区进行测量以获得当前小区状态量S current
若S current-S REF大于或等于第二阈值,则更新S REF以使S REF等于S current,S REF为所述当前驻留的小区的参考小区状态量;
其中,若S REF-S current大于或等于所述第一阈值,对所述当前驻留的小区的相邻小区进行测量。
可选地,所述方法还包括:
从网络设备接收用于指示第二阈值的消息或用于指示第一阈值的消息。
可选地,所述方法还包括:在终端重选到或选择到当前驻留的小区后,获取S REF
其中,终端可以从网络设备获取该S REF,也可以在驻留到当前驻留的小区的时刻测量当前驻留的小区的小区状态量,并将测得的小区状态量确定为S REF,还可以是在驻留到当 前驻留的小区的时刻之前,将最新(或最近)一次测量的当前驻留的小区的小区状态量确定为S REF
可选地,所述小区状态量包括信号功率RSRP或信号质量RSRQ。
可选地,所述相邻小区中的一个或多个小区的覆盖范围大于所述当前驻留的小区的覆盖范围。
可选地,所述方法还包括:
若所述相邻小区中的第一小区满足小区重选的条件,重选到所述第一小区。
其中,小区重选的条件可以是指小区的覆盖范围大于当前驻留的小区的覆盖范围,且小区的信号质量或信号功率大于第三阈值。
可选地,所述方法还包括:
向网络设备发送测量报告,所述测量报告包括所述一个或多个小区的信号质量RSRQ或信号功率RSRP。
对于连接态的终端,在测量相邻小区之后,可以向网络设备发送测量报告,以便网络设备根据该测量报告中包括的一个或多个小区的信号质量或信号功率对终端进行小区切换。
可选地,所述方法还包括:
若所述一个或多个小区的频率的优先级低于所述当前驻留的小区的频率的优先级,则所述一个或多个小区的覆盖范围大于所述当前驻留的小区的覆盖范围;或者,
若所述一个或多个小区的优先级低于所述当前驻留的小区的优先级,则所述一个或多个小区的覆盖范围大于所述当前驻留的小区的覆盖范围;或者,
若所述一个或多个小区的频率低于所述当前驻留的小区的频率,则所述一个或多个小区的覆盖范围大于所述当前驻留的小区的覆盖范围;或者,
若所述一个或多个小区的小区类型为宏小区,所述当前驻留的小区的小区类型为小小区,则所述一个或多个小区的覆盖范围大于所述当前驻留的小区的覆盖范围。
第三方面,提供一种测量方法,所述方法包括:
在Δt内,对当前驻留的小区进行测量,以获得{S i|i为正整数,i≤N},N为Δt内对所述当前驻留的小区进行测量的总次数,S i为第i次测量获得的小区状态量;
更新S REF以使S REF等于{S i|i为正整数,i≤N}中的最大值或等于{S i|i为正整数,i≤N}的平均值,S REF为所述当前驻留的小区的参考小区状态量;
其中,若S REF-S i大于或等于第一阈值,对所述当前驻留的小区的相邻小区进行测量。
可选地,所述方法还包括:从网络设备接收用于指示Δt的信息,或者用于指示所述第一阈值的信息。
可选地,所述方法还包括:在终端重选到或选择到当前驻留的小区后,获取S REF
其中,终端可以从网络设备获取该S REF,也可以在驻留到当前驻留的小区的时刻测量当前驻留的小区的小区状态量,并将测得的小区状态量确定为S REF,还可以是在驻留到当前驻留的小区的时刻之前,将最新(或最近)一次测量的当前驻留的小区的小区状态量确定为S REF
可选地,所述小区状态量包括信号功率RSRP或信号质量RSRQ。
可选地,所述相邻小区中的一个或多个小区的覆盖范围大于所述当前驻留的小区的覆盖范围。
可选地,所述方法还包括:
若所述相邻小区中的第一小区满足小区重选的条件,重选到所述第一小区。
其中,小区重选的条件可以是指小区的覆盖范围大于当前驻留的小区的覆盖范围,且小区的信号质量或信号功率大于第三阈值。
可选地,所述方法还包括:
向网络设备发送测量报告,所述测量报告包括所述一个或多个小区的信号质量RSRQ或信号功率RSRP。
对于连接态的终端,在测量相邻小区之后,可以向网络设备发送测量包括,以便网络设备根据该测量包括中包括的一个或多个小区的信号质量或信号功率对终端进行小区切换。
可选地,所述方法还包括:
若所述一个或多个小区的频率的优先级低于所述当前驻留的小区的频率的优先级,则所述一个或多个小区的覆盖范围大于所述当前驻留的小区的覆盖范围;或者,
若所述一个或多个小区的优先级低于所述当前驻留的小区的优先级,则所述一个或多个小区的覆盖范围大于所述当前驻留的小区的覆盖范围;或者,
若所述一个或多个小区的频率低于所述当前驻留的小区的频率,则所述一个或多个小区的覆盖范围大于所述当前驻留的小区的覆盖范围;或者,
若所述一个或多个小区的小区类型为宏小区,所述当前驻留的小区的小区类型为小小区,则所述一个或多个小区的覆盖范围大于所述当前驻留的小区的覆盖范围。
第四方面,提供一种测量方法,所述方法包括:
确定第一时长Δt 1内的小区状态量的变化量
Figure PCTCN2018076569-appb-000001
是否大于或等于第一阈值;
Figure PCTCN2018076569-appb-000002
大于或等于所述第一阈值,测量当前驻留的小区的相邻小区中的一个或多个第一小区的信号质量RSRQ或信号功率RSRP。
其中,第一时长Δt 1可以为任意时长,在这种情况下,可以并不存在该第一时长,也即,该第一时长是可选的。
可选地,从网络设备接收指示所述Δt 1或所述第一阈值的信息。
其中,可以只从网络设备接收指示所述Δt 1的信息,或者只接收指示所述第一阈值的信息,或者接收指示所述Δt 1和所述第一阈值的信息。
可选地,
Figure PCTCN2018076569-appb-000003
其中,
Figure PCTCN2018076569-appb-000004
为所述当前驻留的小区在参考时间t REF时的小区状态量,
Figure PCTCN2018076569-appb-000005
为所述当前驻留的小区在t REF+Δt 1时的小区状态量,所述小区状态量包括信号功率RSRP或信号质量RSRQ。
可选地,t REF为驻留到所述当前驻留的小区的时刻;或者,t REF为更新
Figure PCTCN2018076569-appb-000006
的时刻。
可选地,所述方法还包括:
Figure PCTCN2018076569-appb-000007
大于或等于所述第一阈值,启动第一定时器,所述第一定时器的运行时长为第二时长Δt 2
在Δt 2内,对所述当前驻留的小区进行测量,以获得{S i|i为正整数,i≤N},N为Δt 2内对所述当前驻留的小区进行测量的总次数,S i为第i次测量获得的小区状态量;
若{S i|i为正整数,i≤N}中任意S i满足
Figure PCTCN2018076569-appb-000008
大于或等于所述第一阈值,则更新
Figure PCTCN2018076569-appb-000009
以使
Figure PCTCN2018076569-appb-000010
等于S N
可选地,
Figure PCTCN2018076569-appb-000011
为在所述Δt 1内所驻留的小区的变化个数。
可选地,所述第一小区的覆盖范围大于所述当前驻留的小区的覆盖范围;
所述方法还包括:
若所述一个或多个第一小区中存在信号质量RSRQ或信号功率RSRP大于或等于第三阈值的小区,则重选到第二小区,所述第二小区为所述一个或多个第一小区中信号质量RSRQ或信号功率RSRP大于或等于第三阈值的一个第一小区。
可选地,所述第一小区的覆盖范围大于所述当前驻留的小区的覆盖范围;
所述方法还包括:
向网络设备发送测量报告,所述测量报告包括所述一个或多个第一小区的信号质量RSRQ或信号功率RSRP。
可选地,所述第一小区的覆盖范围大于所述当前驻留的小区的覆盖范围是通过如下任一种方式来表征:
所述第一小区的频率的优先级低于所述当前驻留的小区的频率的优先级;或者,
所述第一小区的优先级低于所述当前驻留的小区的优先级;或者,
所述第一小区的频率低于所述当前驻留的小区的频率;或者,
所述第一小区的小区类型为宏小区,所述当前驻留的小区的小区类型为小小区。
第五方面,提供一种测量方法,所述方法包括:
若小区状态量的变化量ΔS大于或等于第一阈值,确定达到ΔS时所经历的时长Δt ΔS是否小于或等于第二阈值;
若Δt ΔS小于或等于所述第二阈值,测量当前驻留的小区的相邻小区中的一个或多个第一小区的信号质量RSRQ或信号功率RSRP。
可选地,从网络设备接收指示所述第一阈值或所述第二阈值的信息。
其中,可以只从网络设备接收指示所述第一阈值的信息,或者只接收指示所述第二阈值的信息,或者接收指示所述第一阈值和所述第二阈值的信息。
可选地,
Figure PCTCN2018076569-appb-000012
其中,
Figure PCTCN2018076569-appb-000013
为所述当前驻留的小区在参考时间t REF时的小区状态量,
Figure PCTCN2018076569-appb-000014
为所述当前驻留的小区在t REF+Δt ΔS时的小区状态量,所述小区状态量包括信号功率RSRP或信号质量RSRQ。
可选地,t REF为驻留到所述当前驻留的小区的时刻;或者,t REF为更新
Figure PCTCN2018076569-appb-000015
的时刻。
可选地,所述方法还包括:
若Δt ΔS小于或等于所述第二阈值,启动第一定时器,所述第一定时器的运行时长为第二时长Δt 2
在Δt 2内,对所述当前驻留的小区进行测量,以获得{S i|i为正整数,i≤N},N为Δt 2内对所述当前驻留的小区进行测量的总次数,S i为第i次测量获得的小区状态量;
若{S i|i为正整数,i≤N}中任意S i满足
Figure PCTCN2018076569-appb-000016
大于或等于所述第一阈值,则更新
Figure PCTCN2018076569-appb-000017
以使
Figure PCTCN2018076569-appb-000018
等于S N
可选地,所述第一小区的覆盖范围大于所述当前驻留的小区的覆盖范围;
所述方法还包括:
若所述一个或多个第一小区中存在信号质量RSRQ或信号功率RSRP大于或等于第三阈值的小区,则重选到第二小区,所述第二小区为所述一个或多个第一小区中信号质量RSRQ或信号功率RSRP大于或等于第三阈值的一个第一小区。
可选地,,所述第一小区的覆盖范围大于所述当前驻留的小区的覆盖范围;
所述方法还包括:
向网络设备发送测量报告,所述测量报告包括所述一个或多个第一小区的信号质量RSRQ或信号功率RSRP。
可选地,所述第一小区的覆盖范围大于所述当前驻留的小区的覆盖范围是通过如下任一种方式来表征:
所述第一小区的频率的优先级低于所述当前驻留的小区的频率的优先级;或者,
所述第一小区的优先级低于所述当前驻留的小区的优先级;或者,
所述第一小区的频率低于所述当前驻留的小区的频率;或者,
所述第一小区的小区类型为宏小区,所述当前驻留的小区的小区类型为小小区。
第六方面,提供了一种测量装置,所述测量装置具有实现上述第一方面、第二方面、第三方面、第四方面或第五方面中的测量方法行为的功能。所述测量装置包括至少一个模块,该至少一个模块用于实现上述第一方面、第二方面、第三方面、第四方面或第五方面所提供的测量方法。
第七方面,提供了一种测量装置,所述测量装置的结构中包括处理器和存储器,所述存储器用于存储支持测量装置执行上述第一方面、第二方面、第三方面、第四方面或第五方面所提供的测量方法的程序,以及存储用于实现上述第一方面、第二方面、第三方面、第四方面或第五方面所提供的测量方法所涉及的数据。所述处理器被配置为用于执行所述存储器中存储的程序。所述存储设备的操作装置还可以包括通信总线,该通信总线用于该处理器与存储器之间建立连接。
作为一种可选的设计,该存储器可以设置在该测量装置外,即该测量装置包括处理器,该处理器用于与存储器耦合,读取该存储器中的指令并执行,以实现上述各方面的方法的一种或多种。
第八方面,提供了一种计算机可读存储介质,所述计算机可读存储介质中存储有指令,当其在计算机上运行时,使得计算机执行上述第一方面、第二方面、第三方面、第四方面或第五方面所述的测量方法。
第九方面,提供了一种包含指令的计算机程序产品,当其在计算机上运行时,使得计算机执行上述第一方面、第二方面、第三方面、第四方面或第五方面所述的测量方法。
本申请提供的技术方案带来的有益效果是:
在Δt内,对当前驻留的小区进行测量,以获得{S i|i为正整数,i≤N},N为Δt内对当前驻留的小区进行测量的总次数,S i为第i次测量获得的小区状态量;若{S i|i为正整数,i≤N}中任意S i满足S REF-S i大于或等于第一阈值,则更新S REF以使S REF等于S N,S REF为当前驻留的小区的参考小区状态量;其中,若S REF-S i大于或等于第一阈值,对当前驻留的小区的相邻小区进行测量。也即,在本申请实施例中,终端在确定Δt内的小区状态量较参考小区状态量均减小时,一方面,终端可以启动对相邻小区的测量,另一方面,终端可以将S REF更新为Δt内最后一次测得的小区状态量S N,这样,若终端在测量相邻小区之后,未能成功重选到其他小区上,则可以基于更新后的S REF再次测量当前驻留的小区在Δt内的小区状态量是否满足条件,从而确定是否再次启动对相邻小区的测量,相较于终端持续测量相邻小区而言,减少了终端测量相邻小区的次数,降低了终端功耗。
附图说明
图1A是本申请实施例提供的一种测量方法的系统架构图;
图1B是本申请实施例提供的另一种测量方法的系统架构图;
图2是本申请实施例提供的一种终端结构示意图;
图3是本申请实施例提供的一种测量方法流程图;
图4是本申请实施例提供的一种测量方法流程图;
图5是本申请实施例提供的一种测量方法流程图;
图6是本申请实施例提供的一种测量方法流程图;
图7是本申请实施例提供的一种测量装置框图;
图8是本申请实施例提供的另一种测量装置框图;
图9是本申请实施例提供的另一种测量装置框图。
具体实施方式
为使本申请的目的、技术方案和优点更加清楚,下面将结合附图对本申请实施方式作进一步地详细描述。
在对本申请实施例进行详细的解释说明之前,先对本申请实施例的应用场景予以介绍。
在LTE、5G等通信系统中,通信信号通常以小区的形式进行覆盖。其中,可以将通信信号覆盖范围较大的小区称为宏小区,而将通信信号覆盖范围较小的小区称为小小区。对于空闲态的终端,当其驻留在某个小区时,终端可以通过测量不同频率上的小区的信号质量来重新选择合适的小区驻留,对于连接态的终端,也可以在适当的情况下通过测量不同频率上的小区的信号质量来切换驻留的小区。本申请实施例提供的测量方法即可以用于终端在适当的情况下进行小区测量,并根据测量结果进行小区重选或者是小区切换。
具体地,本申请实施例提供的测量方法可以应用于在以下几种具体的场景中。
第一种场景:小小区和宏小区部署在不同的频率上,不同的频率设置有不同的优先级,例如,小小区所在的频率的优先级高于宏小区所在的频率的优先级。在该种场景下,对于空闲态的终端,当该终端处于移动状态,或者,当终端处于静止状态且有移动的物体遮挡该终端时,终端会因为小小区覆盖小而频繁更换驻留的小小区,这过程中会伴随着频繁启动测量,增加终端功耗。为此,可以采用本申请实施例提供的测量方法对相邻小区进行测量,从而根据测量结果选择合适的小区进行驻留,(例如,驻留到宏小区,因为宏小区覆盖范围大,在终端移动状态下,终端更换驻留小区的频繁程度与驻留到小小区更换驻留小区的频繁程度相比会下降),减少更新驻留小区的频繁程度,降低终端功耗。对于连接态的终端,当该终端处于移动状态,或者,当终端处于静止状态且有移动的物体遮挡该终端时,也可以采用本申请实施例提供的测量方法对相邻小区进行测量,进而通过上报测量结果切换到合适的小区上,(例如,驻留到宏小区,因为宏小区覆盖范围大,在终端移动状态下,终端更换驻留小区的频繁程度与驻留到小小区更换驻留小区的频繁程度相比会下降),减少服务小区的更换频繁程度,即减少切换,降低终端功耗。
第二种场景:小小区和宏小区部署在相同的频率上,相同的频率设置有相同的优先级,且小小区的信号质量或信号功率优于宏小区的信号质量或信号功率。在这种场景下,对于空闲态的终端,当该终端处于移动状态或静止状态,或者当该终端处于静止状态且有移动的物体遮挡该终端时,终端会因为小小区的信号质量较高而重选到小小区上,在此基础上,终端会因为小小区覆盖小而频繁更换驻留的小小区,在这个过程中会伴随着频繁启动测量,增加终端功耗。为此,可以采用采用本申请实施例提供的测量方法对相邻小区进行测量,从而根据测量结果选择合适的小区进行驻留,(例如,驻留到宏小区,因为宏小区覆盖范围大,在终端移动状态下,终端更换驻留小区的频繁程度与驻留到小小区更换驻留小区的频繁程度相比会下降),减少更新驻留小区的频繁程度,降低终端功耗。对于连接态的终端,当该终端处于移动状态或静止状态,或者,当终端处于静止状态且有移动的物体遮挡该终端时,也可以采用本申请实施例提供的测量方法对相邻小区进行测量,从而通过上报测量结果切换到合适的小区上,(例如,驻留到宏小区,因为宏小区覆盖范围大,在终端移动状态下,终端更换驻留小区的频繁程度与驻留到小小区更换驻留小区的频繁程度相比会下降),减少服务小区的更换频繁程度,即减少切换,降低终端功耗。
接下来对本申请实施例所涉及的系统架构进行介绍。
图1A是本申请实施例提供的测量方法所涉及的系统架构图。如图1A中所示,该系统架构中可以包括基站101和终端102。其中,基站101的信号覆盖范围为该基站101所对应的小区,终端102可以为驻留在基站101所对应的小区内的空闲态终端,也可以是已经与 基站101建立了通信连接的的终端。
需要说明的是,基站101可以是演进型基站(E-UTRAN Node B,eNB),也可以是5G通信系统中的下一代基站(next generation Node B,gNB)。
可选地,在一种可能实现的方式中,上述系统架构中的基站可以是虚拟存在的,也即是,如图1B中所示,上述系统架构中的基站的部分功能可以在分布式单元103(Distributed Unit,DU)上,部分功能可以在集中式单元(Centralized Unit,CU)104,每个小区中的基站可以由DU 103来代替,而多个DU 103可以连接到一个CU 104上。
图2是本申请实施例提供的一种终端102的结构示意图,该终端102可以为诸如手机、平板电脑等之类的终端。该终端102主要包括有发射机1021、接收机1022、存储器1023、处理器1024以及通信总线1025。本领域技术人员可以理解,图2中示出的终端102的结构并不构成对终端102的限定,可以包括比图示更多或更少的部件,或者组合某些部件,或者不同的部件布置,本申请实施例对此不做限定。
其中,该发射机1021可以用于向基站101发送数据和/或信令等。该接收机1022可以用于接收基站101发送的数据和/或信令等。
其中,该存储器1023可以用于存储上述基站101发送的数据,并且,该存储器1023也可以用于存储用于执行本申请实施例提供的测量方法的一个或多个运行程序和/或模块。该存储器1023可以是只读存储器(read-only memory,ROM)或可存储静态信息和指令的其它类型的静态存储设备、随机存取存储器(random access memory,RAM)或者可存储信息和指令的其它类型的动态存储设备,也可以是电可擦可编程只读存储器(Electrically Erasable Programmable Read-Only Memory,EEPROM)、只读光盘(Compact Disc Read-Only Memory,CD-ROM)或其它光盘存储、光碟存储(包括压缩光碟、激光碟、光碟、数字通用光碟、蓝光光碟等)、磁盘存储介质或者其它磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由集成电路存取的任何其它介质,但不限于此。存储器1023可以是独立存在,通过通信总线1025与处理器1024相连接。存储器1023也可以和处理器1024集成在一起。
其中,该处理器1024是该终端102的控制中心,该处理器1024可以是一个通用中央处理器(Central Processing Unit,CPU),微处理器,特定应用集成电路(Application-Specific Integrated Circuit,ASIC),或一个或多个用于控制本方案程序执行的集成电路。该处理器1024可以通过运行或执行存储在存储器1023内的软件程序和/或模块,以及调用存储在存储器1013内的数据,来实现本申请实施例提供的测量方法。
另外,上述处理器1024和存储器1023可以通过通信总线1025传送信息。
除此之外,本申请实施例还提供了基站101的结构,具体地,该基站101主要包括有发射机、接收机、存储器、处理器以及通信总线5个组件。本领域技术人员可以理解,基站101的上述结构并不构成对基站101的限定,可以包括比该5个组件更多或更少的部件,或者组合某些部件,或者不同的部件布置,本申请实施例对此不做限定。
其中,基站101中的发射机、接收机、存储器、处理器以及通信总线分别和图2中的终端102中的发射机、接收机、存储器、处理器以及通信总线的功能基本相同,在此就不 再详细阐述。
接下来对本申请实施例提供的测量方法进行详细的解释说明。
对于空闲态的终端,该终端可以在当前驻留的小区上通过图3或图4所示的测量方法来测量相邻小区,进而根据测量结果重选小区进行驻留,接下来将首先介绍第一种用于空闲态的终端的测量方法,如图3所示,该方法可以包括以下步骤:
步骤301:终端从网络设备接收指示第一时长Δt 1或第一阈值的信息。
在本申请实施例中,网络设备可以为终端当前驻留的小区的基站,终端处于空闲态,未与基站建立连接,在这种情况下,基站可以广播指示第一时长Δt 1或第一阈值的信息,该信息可以是仅指示Δt 1的信息,可以是仅指示第一阈值的信息,也可以是指示Δt 1和第一阈值的信息。而终端可以接收基站广播的信息。其中,需要说明的是,为了方便后续说明,在这里通过Δt 1来标记第一时长。
此外,该步骤为可选步骤,第一时长Δt 1和/或第一阈值可以预配置在终端内部。
步骤302:终端判断Δt 1内小区状态量的变化量
Figure PCTCN2018076569-appb-000019
是否大于或等于第一阈值。
其中,
Figure PCTCN2018076569-appb-000020
为当前驻留的小区在参考时间t REF时的小区状态量,
Figure PCTCN2018076569-appb-000021
为当前驻留的小区在t REF+Δt 1时的小区状态量,小区状态量包括信号功率RSRP或信号质量RSRQ。也就是说,
Figure PCTCN2018076569-appb-000022
是终端在t REF时刻测得的当前驻留的小区的信号质量或信号功率,而
Figure PCTCN2018076569-appb-000023
则是t REF+Δt 1时终端测得的当前驻留的小区的信号质量或信号功率,
Figure PCTCN2018076569-appb-000024
则是指终端测量当前驻留的小区在Δt 1内的信号质量或信号功率的变化量。其中,
Figure PCTCN2018076569-appb-000025
可能大于
Figure PCTCN2018076569-appb-000026
也可能小于
Figure PCTCN2018076569-appb-000027
通过Δt 1内小区状态量的变化量的大小可以表征小区状态变化的剧烈程度。
进一步地,在本申请实施例中,上述参考时间t REF可以是指终端驻留到当前驻留的小区的时刻,或者,也可以是指终端更新
Figure PCTCN2018076569-appb-000028
的时刻。
基于此,在一种可能的实现方式中,终端在驻留到当前驻留的小区的时刻测量并记录当前驻留的小区的信号质量或信号功率,得到
Figure PCTCN2018076569-appb-000029
与此同时,从该时刻起进行计时,当经过Δt 1后,终端再次测量当前驻留的小区的信号质量或信号功率,得到
Figure PCTCN2018076569-appb-000030
计算
Figure PCTCN2018076569-appb-000031
Figure PCTCN2018076569-appb-000032
之间差值的绝对值
Figure PCTCN2018076569-appb-000033
其中,终端可以通过定时器进行计时。具体的,终端可以在驻留到当前驻留的小区的时刻启动定时器,该定时器的运行时长为Δt 1,在该定时器运行结束时,触发终端再次测量当前驻留的小区的信号质量或信号功率。
在另一种可能的实现方式中,终端可以从更新
Figure PCTCN2018076569-appb-000034
的时刻开始计时,经过△t 1后,终端再次测量当前驻留的小区的信号质量或信号功率,得到
Figure PCTCN2018076569-appb-000035
计算二者之间差值的绝对值
Figure PCTCN2018076569-appb-000036
可选地,t REF+Δt 1可以是终端执行最后一次测量的时刻或最近一次测量的时刻,例如定义为当前时刻(Current)。
Figure PCTCN2018076569-appb-000037
为最近一次测量结果或当前时刻的测量结果。
可选地,
Figure PCTCN2018076569-appb-000038
也可以为在Δt 1内终端所驻留的小区的变化个数。其中,终端所驻留的小区的变化个数的具体计数方式举例说明如下:例如,终端从小区A重选到小区B,则终端所驻留的小区的变化个数为1。若终端从小区A重选到小区B,又从小区B重选到小区C,或者,终端从小区A重选到小区B,又从小区B重选到小区A,则终端所驻留的小区的变化个数为2。基于此,假设终端在t REF时驻留的小区为小区A,在t REF+Δt 1时驻留的小区为 小区C,
Figure PCTCN2018076569-appb-000039
则是在Δt 1内终端从小区A重选到小区C这一过程中所经过的所有的小区的个数。
由上述描述可知,
Figure PCTCN2018076569-appb-000040
可以是Δt 1内当前驻留的小区的信号质量或信号功率的变化量,也可以是Δt 1内终端所驻留的小区的变化个数,相应地,第一阈值可以是信号质量或信号功率的变化量阈值,或者,也可以是小区变化个数阈值。
当小区状态变化量是Δt 1内当前驻留的小区的信号质量或信号功率的变化量时,终端可以通过确定在Δt 1内当前驻留的小区的信号质量或信号功率的变化量是否大于或等于第一阈值来判断当前驻留的小区的信号质量或信号功率的变化是否剧烈,当在Δt 1内当前驻留的小区的信号质量或信号功率的变化量大于或等于第一阈值时,则说明小区信号变化较为剧烈,此时,终端可以执行步骤303,否则,终端可以执行步骤305。
可选地,当小区状态变化量是指在Δt 1内终端所驻留的小区的变化个数时,终端可以通过判断在Δt 1内小区的变化个数是否大于或等于第一阈值来判断终端重选小区的频繁程度是否较高。当在Δt 1内终端所驻留的小区的变化个数大于或等于第一阈值时,则说明终端重选小区的频繁程度较高,此时,终端可以执行步骤303,否则,终端可以执行步骤305。
可选地,由于本步骤中终端判断
Figure PCTCN2018076569-appb-000041
是否大于或等于第一阈值是为了判断小区信号变化程度或者是重选小区的频繁程度的高低,因此,在本申请实施例的一种可能的实现方式中,本步骤中终端判断
Figure PCTCN2018076569-appb-000042
是否大于或等于第一阈值还可以通过其他实现方式来代替。具体的,在本申请实施例中,终端从网络设备接收的第一阈值可以是网络设备为终端配置的一个初始阈值,终端在接收到该第一阈值之后,可以对该第一阈值进行相应的处理,从而得到处理后的阈值,终端可以将
Figure PCTCN2018076569-appb-000043
与该处理后的阈值进行比较,从而判断小区信号变化程度或者是重选小区的频繁程度的高低。
步骤303:若
Figure PCTCN2018076569-appb-000044
大于或等于第一阈值,终端测量当前驻留的小区的相邻小区中的一个或多个第一小区的信号质量RSRQ或信号功率RSRP。
其中信号质量RSRQ为参考信号接收质量(Reference Signal Received Quality),信号功率RSRP为参考信号接收功率(Reference Signal Received Power)。
若通过步骤302确定在Δt 1
Figure PCTCN2018076569-appb-000045
大于或等于第一阈值,则说明终端当前驻留的小区信号变化较为剧烈或者是终端重选小区的频繁程度较高。其中,如果是终端当前驻留的小区的信号变化较为剧烈,那么,终端在当前驻留的小区上很可能很快就不能再继续正常工作了,此时,终端可以启动对相邻小区的测量。如果是终端重选小区的频率较高,那么,则说明终端变换小区太频繁,此时,终端可以启动对相邻小区的测量,以便根据测量结果重选并驻留到一个更为合适的小区上(例如,驻留到覆盖范围较大的小区内),从而减少终端测量和重选小区次数。其中,终端可以对相邻小区中的一个或多个第一小区的信号质量进行测量,其中,该第一小区的频率与当前驻留的小区的频率可以相同也可以不同,即相邻小区包括同频邻小区和/或异频邻小区。
进一步地,在当前驻留的小区的信号变化较为剧烈或者终端重选小区的频繁程度较高的情况下,如果终端根据对相邻小区的测量结果继续重选到与当前驻留的小区的覆盖范围相同或者是更小的小区上,那么,终端在移动的过程中,即使移动较小的距离,也会引起较大的信号质量变化,这样,后续将导致终端频繁的进行小区测量和重选,增加了终端的功耗。基于此,在本申请实施例中,如果终端当前驻留的小区的信号变化较为剧烈,或者是终端重选小区的频繁程度较高,为了避免终端后续频繁的测量和重选,终端可以测量的第一小区可以是覆盖范围大于当前驻留的小区的小区。由于该第一小区的覆盖范围大于终 端当前驻留的小区的覆盖范围,因此,终端可以通过测量第一小区的信号质量或信号功率来重选到覆盖范围比当前驻留的小区的覆盖范围更大的小区上,这样,即使终端处于移动状态,在移动相同距离的情况下,相对于驻留在更小覆盖范围的小区,信号变化将会更慢,这样,就可以相对的减少终端进行小区测量以及根据测量结果进行小区重选的次数,降低了终端的功耗。
需要说明的是,终端当前驻留的小区的相邻小区中可能既包括比当前驻留小区覆盖范围更大的第一小区,也包括与当前驻留小区的覆盖范围相同或者更小的小区。在本申请实施例中,在进行小区部署时,可以通过各个小区的频率的优先级、各个小区的优先级、各个小区的频率高低或者是各个小区的小区类型来表征小区覆盖范围的大小。
具体的,当采用小区的频率的优先级来表征小区覆盖范围的大小时,可以将覆盖范围较大的小区的频率的优先级设置的较低,而将覆盖范围较小的小区的频率的优先级设置的较高。在这种情况下,终端可以从网络设备接收指示频率以及频率的优先级的信息,这样,当终端确定
Figure PCTCN2018076569-appb-000046
大于或等于第一阈值时,即可以根据小区的频率的优先级从当前驻留的小区的相邻小区中选择覆盖范围更大的第一小区进行测量。
其中,终端可以从网络设备接收包含有至少两个频率(也即两个或多个频率)和至少两个频率中每个频率对应的优先级的配置信息,这至少两个频率中包括当前驻留的小区的频率。终端可以从至少两个频率中选择优先级低于当前驻留的小区的频率的优先级的频率,并测量相邻小区中部署在选择的频率上的一个或多个第一小区的信号质量。由于频率的优先级越低,部署在相应的频率上的小区的覆盖范围就越大,这样,终端从至少两个频率中选择的频率的优先级低于当前驻留的小区的频率的优先级,也即部署在选择的频率上的小区的覆盖范围比当前驻留的小区的覆盖范围更大,如此,终端测量相邻小区中部署在选择的频率上的小区,实际上就是在测量相邻小区中覆盖范围比当前驻留的小区的覆盖范围大的第一小区。
当采用小区的优先级来表征覆盖范围的大小时,可以将覆盖范围较大的小区的优先级设置的较低,而将覆盖范围较小的小区的优先级设置的较高。在这种情况下,终端可以从网络设备接收指示小区的优先级的信息,这样,当终端确定
Figure PCTCN2018076569-appb-000047
大于或等于第一阈值时,即可以从相邻小区中选择优先级低于当前驻留的小区的小区作为第一小区,由于优先级越低,覆盖范围越大,而第一小区的优先级低于当前驻留的小区的优先级,因此,第一小区的覆盖范围将大于当前驻留的小区。
当采用小区的频率大小来表征小区覆盖范围的大小时,一般地,较低的频率的小区,其覆盖范围较大,较高的频率的小区,其覆盖范围较小。在这种情况下,终端可以从网络设备接收指示小区的频率的信息,这样,当终端确定
Figure PCTCN2018076569-appb-000048
大于或等于第一阈值时,即可以从相邻小区中选择频率低于当前驻留的小区的频率的小区作为第一小区,由于频率越低,覆盖范围越大,而第一小区的频率低于当前驻留的小区的频率,因此,第一小区的覆盖范围将大于当前驻留的小区。
当采用小区类型来表征小区覆盖范围的大小时,可以将覆盖范围较大的小区的小区类型设置为宏小区,而将覆盖范围较小的小区的小区类型设置为小小区。在这种情况下,终端可以从网络设备接收指示小区的小区类型的信息,这样,当终端确定
Figure PCTCN2018076569-appb-000049
大于或等于第一阈值时,即可以从相邻小区中选择小区类型为宏小区的小区作为第一小区。
可选地,在一种可能的实现方式中,当采用小区类型来表征小区覆盖范围的大小时,可以将覆盖范围较大的小区部署在一个或多个第一频率上,并且设置第一频率对应的小区 类型为宏小区,覆盖范围较小的小区部署在一个或多个第二频率上,并且设置第二频率对应的小区类型为小小区。在这种情况下,终端可以从网络设备接收包含有至少两个频率和至少两个频率中每个频率对应的小区类型的信息,至少两个频率中包括当前驻留的小区的频率。终端可以从至少两个频率中选择对应的小区类型为宏小区的频率,并将相邻小区中部署在选择的频率上的一个或多个小区作为第一小区。
可选地,当终端确定
Figure PCTCN2018076569-appb-000050
大于或等于第一阈值时,终端还可以启动第一定时器,该第一定时器的运行时长为第二时长Δt 2。在Δt 2内,终端可以持续对当前驻留的小区和相邻小区进行测量,若终端通过测量邻小区的信号没有重选到其他小区,可以获得在Δt 2内对当前驻留的小区测得的多个小区状态量{S i|i为正整数,i≤N},其中,N为Δt 2内对所述当前驻留的小区进行测量的总次数,S i为第i次测量获得的小区状态量。若{S i|i为正整数,i≤N}中任意S i满足
Figure PCTCN2018076569-appb-000051
大于或等于第一阈值,则更新
Figure PCTCN2018076569-appb-000052
以使
Figure PCTCN2018076569-appb-000053
等于S N。也就是说,在本申请实施例中,终端可以将Δt 2内测得的所有小区状态量与
Figure PCTCN2018076569-appb-000054
进行比较,若测得的所有小区状态量与
Figure PCTCN2018076569-appb-000055
之间的差值的绝对值均大于或等于第一阈值,则终端可以对
Figure PCTCN2018076569-appb-000056
进行更新,以使得更新后的
Figure PCTCN2018076569-appb-000057
等于S N,S N即为在第一定时器运行的Δt 2内最后一次测得的小区状态量。可选地,Δt 2的结束时刻可以称为当前时刻(Current),则S N为最近一次测得的小区状态量。
由上述描述可知,终端可以在确定
Figure PCTCN2018076569-appb-000058
大于或等于第一阈值时,一方面启动对相邻小区的测量,一方面再持续测量Δt 2内的当前驻留的小区的小区状态量,并计算测得的小区状态量与
Figure PCTCN2018076569-appb-000059
之间的差值,这样,若在Δt 2内终端一直未能成功重选到其他小区,那么,终端可以通过上述方法更新
Figure PCTCN2018076569-appb-000060
之后,终端可以重新以更新后的
Figure PCTCN2018076569-appb-000061
来确定
Figure PCTCN2018076569-appb-000062
是否大于或等于第一阈值,从而确定是否再次启动测量,相较于终端一直持续测量相邻小区而言,减少了测量次数,降低了终端功耗。
终端可以通过步骤301-303中介绍的测量方法在确定小区状态变化较为剧烈时才启动对相邻小区的测量,这样,相较于现有技术中在当前驻留的小区的信号质量的变化量达到一定阈值即测量的方法,减少了测量次数。进一步地,当小区状态变化较为剧烈时,终端还可以通过步骤304根据测量结果进行小区重选。在某些场景中,以便终端可以尽量的重选到覆盖范围较大的小区上,从而减少重选小区的次数,降低终端的功耗。
步骤304:若一个或多个第一小区中存在信号质量或信号功率大于或等于第三阈值的小区,则终端重选到第二小区,第二小区为一个或多个第一小区中信号质量或信号功率大于或等于第三阈值的一个第一小区。
当终端通过步骤303测量得到当前驻留的小区的相邻小区中的一个或多个第一小区的信号质量或信号功率之后,终端可以根据一个或多个第一小区的信号质量或信号功率进行小区重选。其中,终端可以重选到一个或多个第一小区中信号最好的小区。具体的,终端可以将一个或多个第一小区中信号质量或信号功率大于或等于第三阈值的第一小区作为第二小区,并重选到该第二小区。当然,如果信号质量或信号功率大于或等于第三阈值的第一小区有多个,那么,终端可以将其中信号质量或信号功率最高的第一小区作为第二小区,并重选到该第二小区上。
步骤305:若
Figure PCTCN2018076569-appb-000063
小于第一阈值,终端在t REF+Δt 1时刻重新进行计时,重新计算小区状态量的变化量,并返回步骤302。
其中,若
Figure PCTCN2018076569-appb-000064
小于第一阈值,则说明小区状态量的变化不满足终端启动测量的条件,此时,终端可以从当前时刻也即t REF+Δt 1时刻开始重新进行计时,此时将t REF更新为t REF+Δt 1,在经过Δt 1之后,也即在t REF+Δt 1时刻,终端可以再次测量小区状态量,并计算测量得到的小区状态量与t REF时刻的小区状态量
Figure PCTCN2018076569-appb-000065
之间的差值的绝对值,得到
Figure PCTCN2018076569-appb-000066
之后,终端可以返回步骤302重新比较
Figure PCTCN2018076569-appb-000067
与第一阈值的大小,若大于或等于第一阈值,则可以执行步骤303和304,若小于第一阈值,则可以重复执行上述过程。
可选地,在一种可能的实现方式中,终端在确定
Figure PCTCN2018076569-appb-000068
小于第一阈值时,还可以将
Figure PCTCN2018076569-appb-000069
更新为
Figure PCTCN2018076569-appb-000070
并从t REF+Δt 1时刻重新进行计时,此时将t REF更新为t REF+Δt 1,在经过Δt 1之后,也即在t REF+Δt 1时刻,终端可以再次测量小区状态量,并计算测量得到的小区状态量
Figure PCTCN2018076569-appb-000071
与t REF时刻的小区状态量
Figure PCTCN2018076569-appb-000072
之间的差值的绝对值,得到
Figure PCTCN2018076569-appb-000073
之后,终端可以返回步骤302再次比较
Figure PCTCN2018076569-appb-000074
与第一阈值的大小,在大于或等于第一阈值时,执行步骤303和304,在小于第一阈值时,则继续重复上述过程。
需要说明的是,在本申请实施例中,终端均可以通过设置定时器来进行计时。
可选地,当通过上述两种方式返回步骤302时,终端还可以对第一阈值进行更新,例如,终端可以将第一阈值减去指定数值后作为新的第一阈值,之后,再将小区状态量的变化量与更新后的第一阈值进行比较。
在本申请实施例中,终端可以判断第一时长内小区状态量的变化量是否大于或等于第一阈值,若大于或等于第一阈值,终端可以测量当前驻留的小区的相邻小区中的一个或多个第一小区的信号质量或信号功率。也即是,在本申请实施例中,终端可以根据第一时长内的小区状态量的变化量的大小来确定是否启动对当前驻留的小区的相邻小区的测量,而在第一时长内的小区状态量的变化量实际上反映了小区状态变化是否剧烈,由此可见,在本申请实施例中,终端是在确定小区状态变化较为剧烈时才启动对相邻小区的测量,相较于现有技术中在当前驻留的小区的信号质量的变化量达到一定阈值即测量的方法,减少了测量次数,降低了终端的功耗。
其次,在本申请中,终端测量的一个或多个第一小区可以是覆盖范围大于当前驻留的小区的小区,之后,若测得的一个或多个第一小区的信号质量或信号功率中存在信号质量或信号功率大于或等于第三阈值的小区,则终端可以重选到第二小区,该第二小区为一个或多个第一小区中信号质量或信号功率大于或等于第三阈值的一个第一小区。这样,对于空闲态的且处于移动状态中的终端,当终端当前驻留的小区的信号变化较为剧烈,或者当终端重选小区的频繁程度较高时,终端可以直接重选到覆盖范围更大的小区上,这样,由于重选的小区的覆盖范围较之前的小区更大,因此,当终端移动时,就不会因为移动较小的距离就导致信号质量剧烈变化,自然也就不会因此而频繁的进行小区测量或重选,减少了终端进行小区测量和重选的次数,降低了终端功耗。
接下来将介绍第二种用于空闲态的终端的测量方法,如图4所示,该方法包括以下步骤:
步骤401:终端从网络设备接收指示第一阈值或第二阈值的信息。
在本申请实施例中,网络设备可以为终端当前驻留的小区的基站,终端处于空闲态,未与基站建立连接,在这种情况下,基站可以广播指示第一阈值或第二阈值的信息,该信息可以是仅指示第一阈值的信息,可以是仅指示第二阈值的信息,也可以是指示第一阈值 和第二阈值的信息。而终端可以接收基站广播的信息。
需要说明的是,其中,第一阈值可以是信号质量的变化量阈值,也可以是信号功率的变化量阈值,或者还可以是小区变化个数阈值。第二阈值则为时间阈值。
此外,该步骤为可选步骤,第一阈值和/或第二阈值可以预配置在终端内部。
步骤402:若小区状态量的变化量ΔS大于或等于第一阈值,确定达到ΔS时所经历的时长Δt ΔS是否小于或等于第二阈值。
其中,
Figure PCTCN2018076569-appb-000075
为当前驻留的小区在参考时间t REF时的小区状态量,
Figure PCTCN2018076569-appb-000076
为当前驻留的小区在t REF+Δt ΔS时的小区状态量,小区状态量包括信号功率RSRP或信号质量RSRQ。其中信号质量RSRQ为参考信号接收质量(Reference Signal Received Quality),信号功率RSRP为参考信号接收功率(Reference Signal Received Power)。也就是说,在本申请实施例中,终端可以在参考时间t REF时测量一次当前驻留的小区的小区状态量
Figure PCTCN2018076569-appb-000077
与此同时,终端可以启动定时器,之后,终端可以持续测量当前驻留的小区的小区状态量,并在每次测量之后,计算当前测量得到的小区状态量与参考时间t REF时测量的小区状态量之间的差值的绝对值ΔS。判断ΔS是否大于或等于第一阈值,若ΔS大于或等于第一阈值,则终端可以通过定时器获取从参考时间t REF开始到当前时刻(也即小区状态量的变化量达到ΔS的时刻)为止所经过的时长Δt ΔS,并判断Δt ΔS是否小于或等于第二阈值。通过上述方法,终端可以实时测量参考时间t REF之后的小区状态量,从而实时获取小区状态量的变化量,并在小区状态量的变化量达到第一阈值时,通过所经历的时长来确定小区状态变化的剧烈程度,相较于直接在一定时长的结束时刻测量小区状态量,并以此计算小区状态量的变化量,从而根据小区状态量的变化量的大小来确定小区状态变化的剧烈程度更为准确。
需要说明的是,上述参考时间t REF可以是指终端驻留到当前驻留的小区的时刻,也可以是指终端更新
Figure PCTCN2018076569-appb-000078
的时刻。
可选地,t REF+Δt ΔS可以是终端执行最后一次测量的时刻或最近一次测量的时刻,例如定义为当前时刻(Current)。
Figure PCTCN2018076569-appb-000079
为最近一次测量结果或当前时刻的测量结果。
基于此,在一种可能的实现方式中,终端在驻留到当前驻留的小区的时刻即测量并记录当前驻留的小区的信号质量或信号功率,得到
Figure PCTCN2018076569-appb-000080
与此同时,从该时刻开始,终端持续测量当前驻留的小区的信号质量或信号功率,并在每次测量得到
Figure PCTCN2018076569-appb-000081
时,计算二者之间差值的绝对值ΔS。
在另一种可能的实现方式中,终端可以将更新
Figure PCTCN2018076569-appb-000082
的时刻开始,以该时刻为参考时间,以该时刻测得的小区状态量作为更新的
Figure PCTCN2018076569-appb-000083
之后,终端持续测量当前驻留的小区的信号质量或信号功率,并在每次测量得到
Figure PCTCN2018076569-appb-000084
时,计算二者之间差值的绝对值ΔS。
当确定ΔS大于或等于第一阈值时,则说明小区状态已经变化了较大幅度,在这种情况下,终端可以进一步地判断变化这么大幅度所用的时间Δt ΔS,若Δt ΔS小于或等于第二阈值,则说明是小区状态在较短时间内发生了较大幅度的变化,也即小区状态变化较为剧烈,在这种情况下,终端可以执行步骤403,否则,终端可以执行步骤405。
可选地,本步骤中第一阈值和第二阈值主要是为了判断小区状态变化是否剧烈,基于此,在本申请实施例中,本步骤还可以通过其他实现方式来代替。具体的,在本申请实施例中,终端从网络设备接收的第一阈值或第二阈值可以是网络设备为终端配置的一个初始阈值,终端在接收到该第一阈值或第二阈值之后,可以对该第一阈值或第二阈值进行相应的处理,从而得到处理后的阈值,终端可以将ΔS与处理后的第一阈值进行比较,或者将Δt ΔS 与处理后的阈值进行比较,从而判断小区状态变化是否剧烈。
步骤403:若Δt ΔS小于或等于第二阈值,测量当前驻留的小区的相邻小区中的一个或多个第一小区的信号质量RSRQ或信号功率RSRP。
若通过步骤402确定Δt ΔS小于等于第二阈值,则说明终端当前驻留的小区信号变化较为剧烈,在这种情况下,终端在当前驻留的小区上很可能很快就不能再继续正常工作了,此时,终端可以启动对相邻小区的测量,以便根据测量结果重选并驻留到更为合适的小区上。
其中,终端可以测量当前驻留的小区的相邻小区中的一个或多个第一小区的信号质量或信号功率,该第一小区可以为相邻小区中与当前驻留的小区的频率相同或者不同的小区。可选地,该第一小区还可以为覆盖范围大于终端当前驻留的小区的覆盖范围的小区。
具体的,当该第一小区为覆盖范围大于终端当前驻留的小区的覆盖范围的小区时,终端测量相邻小区中的一个或多个第一小区的具体实现方式可以参考前述实施例中步骤303中的相关实现方式,本申请实施例对此不再赘述。
可选地,当终端确定Δt ΔS小于或等于第二阈值时,终端还可以启动第一定时器,该第一定时器的运行时长为第二时长Δt 2,在Δt 2内,终端可以对当前驻留的小区进行测量,若终端通过测量邻小区的信号没有重选到其他小区,可以获得在Δt 2内测得的多个小区状态量{S i|i为正整数,i≤N},其中,N为Δt 2内对当前驻留的小区进行测量的总次数,S i为第i次测量获得的小区状态量;若{S i|i为正整数,i≤N}中任意S i满足
Figure PCTCN2018076569-appb-000085
大于或等于第一阈值,则更新
Figure PCTCN2018076569-appb-000086
以使
Figure PCTCN2018076569-appb-000087
等于S N。也就是说,在本申请实施例中,终端可以将Δt 2内测得的所有小区状态量与
Figure PCTCN2018076569-appb-000088
进行比较,若测得的所有小区状态量与
Figure PCTCN2018076569-appb-000089
之间的差值的绝对值均大于或等于第一阈值,则终端可以对
Figure PCTCN2018076569-appb-000090
进行更新,以使得更新后的
Figure PCTCN2018076569-appb-000091
等于S N,S N即为在第一定时器运行的Δt 2内最后一次测得的小区状态变化量。可选地,Δt 2的结束时刻可以称为当前时刻(Current),则S N为最近一次测得的小区状态量。
终端可以通过步骤401-403中介绍的测量方法在确定小区状态变化较为剧烈时才启动对相邻小区的测量,这样,相较于现有技术中在当前驻留的小区的信号质量的变化量达到一定阈值即测量的方法,减少了测量次数。进一步地,当当前驻留的小区状态量变化较为剧烈时,终端还可以通过步骤404根据测量结果进行小区重选,以便终端可以尽量的重选到覆盖范围较大的小区上,从而减少重选小区的次数,降低终端的功耗。
步骤404:若一个或多个第一小区中存在信号质量或信号功率大于或等于第三阈值的小区,则终端重选到第二小区,第二小区为一个或多个第一小区中信号质量或信号功率大于或等于第三阈值的一个第一小区。
本步骤的具体实现方式可以参考前述实施例中步骤304中的具体实现方式,本申请实施例在此不再赘述。
在本申请实施例中,终端可以从网络设备接收指示第一阈值和第二阈值的信息,之后,终端可以判断小区状态量的变化量ΔS是否大于或等于第一阈值,若ΔS大于或等于第一阈值,则终端可以进一步的判断达到ΔS时所经历的时长是否小于或等于第二阈值,若小于或等于第二阈值,则说明小区状态在较短时间内发生了较大幅度的变化,在这种情况下,终 端可以启动对相邻小区的测量,以便终端可以根据测量结果重选并驻留到更为合适的小区上。由于本申请中终端是在小区状态变化较为剧烈的情况下才启动对相邻小区的测量,因此,相较于相关技术中只要小区状态变化幅度较大即启动测量,减少了测量次数,相应地也就减少了重选小区的次数。进一步地,在本申请中,由于重选小区时可以通过仅测量相邻小区中覆盖范围较大的小区而使得终端重选到覆盖范围大于当前驻留小区的小区上,因此,即使终端在移动状态下,由于重选的小区覆盖范围较大,也不会因为移动较小的距离就导致信号质量剧烈变化,自然也就不会因此而频繁的进行小区测量或重选,减少了终端进行小区测量和重选的次数,降低了终端功耗。
上述实施例主要介绍了对于空闲态的终端,该终端在当前驻留的小区上测量相邻小区,进而根据测量结果重选到其他小区进行驻留的具体实现过程,而对于连接态的终端,由于终端已经与当前驻留的小区的基站建立了通信连接,因此,终端可以通过图5或图6所示的两种测量方法来测量相邻小区,并通过上报测量结果从当前驻留的小区上切换到其他小区上。接下来首先介绍第一种连接态的终端的测量方法,如图5所示,该方法包括以下步骤:
步骤501:终端从网络设备接收指示第一时长Δt 1或第一阈值的信息。
在本申请实施例中,网络设备可以为终端当前驻留的小区的基站,终端处于连接态,也即终端与当前驻留的小区的基站建立了通信连接,在这种情况下,基站可以向终端发送指示第一时长或第一阈值的信息。终端可以接收基站发送的指示第一时长或第一阈值的信息。此外,该步骤为可选步骤,第一时长Δt 1和/或第一阈值可以预配置在终端内部。
步骤502:终端判断Δt 1小区状态量的变化量
Figure PCTCN2018076569-appb-000092
是否大于或等于第一阈值。
本步骤的具体实现方式可以参考步骤302,本申请实施例在此不再赘述。
步骤503:若
Figure PCTCN2018076569-appb-000093
大于或等于第一阈值,终端测量当前驻留的小区的相邻小区中的一个或多个第一小区的信号质量RSRQ或信号功率RSRP。
需要说明的是,第一小区可以是相邻小区中与当前驻留的小区频率相同或不同的小区。
可选地,在小区状态变化较为剧烈的情况下,为了使得终端能够尽量切换至覆盖范围较大的小区上,该第一小区也可以是相邻小区中覆盖范围比当前驻留的小区的覆盖范围大的小区。
本步骤的具体实现方式可以参考步骤303,本申请实施例在此不再赘述。
步骤504:终端向基站发送测量报告,测量报告包括一个或多个第一小区的信号质量或信号功率。
当终端通过步骤503测量一个或多个第一小区的信号质量或信号功率之后,终端可以向基站发送测量报告,该测量报告中可以包括一个或多个第一小区中每个第一小区的信号质量或信号功率。
当第一小区是相邻小区中覆盖范围比当前驻留的小区的覆盖范围更大的小区时,由于第一小区的覆盖范围比当前驻留的小区的信号覆盖范围大,这样,终端直接向基站上报第一小区的信号质量或信号功率,则可以使得基站根据第一小区的信号质量直接将其切换到覆盖范围更大的第一小区上,避免了终端在移动过程中总是切换到覆盖范围较小的小区上所导致的频繁测量、上报和切换,降低了终端功耗,减少了终端与基站之间的信令开销。
可选地,当终端测得一个或多个第一小区的信号质量或信号功率之后,终端也可以不将每个第一小区的信号质量或信号功率进行上报,而是有选择的上报测得的一个或多个第一小区中的部分小区的信号质量或信号功率。
其中,终端可以选择一个或多个第一小区的信号质量或信号功率中较高的第一小区进行上报。具体的,终端可以从一个或多个第一小区的信号质量或信号功率中选择大于第三阈值的信号质量或信号功率进行上报。这样,若第一小区的覆盖范围比当前驻留的小区的覆盖范围大,那么,则可以使得基站将终端直接切换到覆盖范围较大且信号质量或信号功率较好的第一小区上。
步骤505:当基站接收到终端发送的测量报告时,基站根据测量报告包括的一个或多个第一小区的信号质量或信号功率确定第二小区,并向终端发送第一消息,该第一消息用于指示终端切换到第二小区,第二小区为一个或多个第一小区中的一个第一小区。
当基站接收到终端发送的测量报告时,可以根据测量报告包括的一个或多个第一小区的信号质量或信号功率确定第二小区。其中,根据终端发送的测量报告的不同,基站也可以采用不同的方式来确定第二小区。
具体的,基于步骤404可知,在一种可能的情况下,终端上报的测量报告中包括一个或多个第一小区中每个第一小区的信号质量或信号功率,在这种情况下,基站可以从一个或多个第一小区中选择信号质量或信号功率大于或等于第三阈值的第一小区作为第二小区,如果信号质量或信号功率大于第三阈值的第一小区有多个,则选择其中信号质量或信号功率最高的作为第二小区。
在一种可能的情况下,终端上报的测量报告中包括一个或多个第一小区中信号质量或信号功率大于或等于第三阈值的第一小区的信号质量或信号功率,此时,基站可以从中选择信号质量或信号功率最高的第一小区作为第二小区。
当确定第二小区之后,基站可以向终端发送第一消息,该第一消息用于指示终端从当前驻留的小区切换到第二小区。
此外,基站在执行小区切换时,会考虑很多因素,有时单单凭借终端上报的测量报告,基站可能不执行小区切换,所以本步骤为可选步骤。
步骤506:终端从基站接收第一消息,并根据第一消息切换到第二小区。
步骤507:若
Figure PCTCN2018076569-appb-000094
小于第一阈值,终端在t REF+Δt 1时刻重新进行计时,重新计算小区状态量的变化量,并返回步骤502。
本步骤的具体实现方式可以参考步骤305中的具体实现方式,本申请实施例在此不再赘述。
在本申请实施例中,终端可以判断Δt 1内小区状态变化量
Figure PCTCN2018076569-appb-000095
是否大于或等于第一阈值,若
Figure PCTCN2018076569-appb-000096
大于或等于第一阈值,终端可以直接测量当前驻留的小区的相邻小区中的一个或多个第一小区的信号质量或信号功率。之后,终端可以根据一个或多个第一小区的信号质量或信号功率向基站发送测量报告,以使得基站根据该测量报告发送用于指示终端切换到第二小区的第一消息,该第二小区为一个或多个第一小区中的一个第一小区。也即是,对于连接态的终端,当该终端当前驻留的小区的信号发生较为剧烈的变化时,或者是当该终端切换小区的频繁程度较高时,终端才会测量相邻小区的信号质量或者信号功率以上报基站,相较于现有技术中终端在小区信号变化幅度较大的情况下即测量并上报基站,减少了测量次数,也减少了终端上报基站的次数,节省了信令开销。进一步地,在本申请中, 终端可以直接测量覆盖范围较大的第一小区的信号质量,并上报给基站,这样,基站可以根据上报的信号质量或信号功率直接将终端切换至覆盖范围较大的小区,如此,当终端移动时,就不会因为移动较小的距离就导致信号质量剧烈变化,自然也就不会因此而频繁的进行小区测量或切换,进一步地减少了终端进行小区测量和切换的次数,降低了终端功耗,同时,减少了终端上报信号质量的次数,从而减少了信令开销。
接下来将介绍第二种用于连接态的终端的测量方法,如图6所示,该方法包括以下步骤:
步骤601:终端从网络设备接收指示第一阈值或第二阈值的信息。
在本申请实施例中,网络设备可以为终端当前驻留的小区的基站,终端处于连接态,也即终端与当前驻留的小区的基站建立了通信连接,在这种情况下,基站可以向终端发送指示第一阈值或第二阈值的信息。相应地,终端可以接收基站发送的指示第一阈值或第二阈值的信息。此外,该步骤为可选步骤,第一阈值和/或第二阈值可以预配置在终端内部。
步骤602:若小区状态量的变化量ΔS大于或等于第一阈值,确定达到ΔS时所经历的时长Δt ΔS是否小于或等于第二阈值。
本步骤的具体实现方式可以参考步骤402,本申请实施例在此不再赘述。
步骤603:若Δt ΔS小于或等于第二阈值,测量当前驻留的小区的相邻小区中的一个或多个第一小区的信号质量RSRQ或信号功率RSRP。
需要说明的是,第一小区可以是相邻小区中与当前驻留的小区频率相同或不同的小区。
可选地,在小区状态变化较为剧烈的情况下,为了使得终端能够尽量切换至覆盖范围较大的小区上,该第一小区也可以是相邻小区中覆盖范围比当前驻留的小区的覆盖范围大的小区。
本步骤的具体实现方式可以参考步骤403,本申请实施例在此不再赘述。
步骤604:终端向基站发送测量报告,测量报告包括一个或多个第一小区的信号质量RSRQ或信号功率RSRP。
本步骤可以参考前述实施例中步骤504的具体实现方式,本申请实施例在此不再赘述。
步骤605:当基站接收到终端发送的测量报告时,基站根据测量报告包括的一个或多个第一小区的信号质量或信号功率确定第二小区,并向终端发送第一消息,该第一消息用于指示终端切换到第二小区,第二小区为一个或多个第一小区中的一个第一小区。
本步骤的具体实现过程可以参考前述实施例中步骤505中的相关实现方式,本申请实施例在此不再赘述。
此外,基站在执行小区切换时,会考虑很多因素,有时单单凭借终端上报的测量报告,基站可能不执行小区切换,所以本步骤为可选步骤。
步骤606:终端从基站接收第一消息,并根据第一消息切换到第二小区。
在本申请实施例中,终端可以判断小区状态量的变化量ΔS是否大于或等于第一阈值,若ΔS大于或等于第一阈值,则终端可以进一步的判断达到ΔS时所经历的时长是否小于或等于第二阈值,若小于或等于第二阈值,则说明小区状态在较短时间内发生了较大幅度的变化,在这种情况下,终端可以启动对相邻小区的测量。之后,终端可以根据测得的一个或多个第一小区的信号质量或信号功率向基站发送测量报告,以使得基站根据该测量报告发送用于指示终端切换到第二小区的第一消息,该第二小区为一个或多个第一小区中的一 个第一小区。也即是,对于连接态的终端,当该终端当前驻留的小区的信号发生较为剧烈的变化时,或者是当该终端切换小区的频率较高时,终端才会测量相邻小区的信号质量或者信号功率以上报基站,相较于现有技术中终端在小区信号变化幅度较大的情况下即测量并上报基站,减少了测量次数,也减少了终端上报基站的次数,节省了信令开销。进一步地,在本申请中,终端可以直接测量覆盖范围较大的第一小区的信号质量,并上报给基站,这样,基站可以根据上报的信号质量直接将终端切换至覆盖范围较大的小区,如此,当终端移动时,就不会因为移动较小的距离就导致信号质量剧烈变化,自然也就不会因此而频繁的进行小区测量或切换,进一步地减少了终端进行小区测量和切换的次数,降低了终端功耗,同时,减少了终端上报信号质量的次数,从而减少了信令开销。
前述实施例中介绍了不同状态的终端测量相邻小区并重选小区的几种实现方式。接下来,将通过下述实施例详细介绍几种终端启动对相邻小区的测量的几种实现方式,也即终端启动测量的条件或时机。
第一种方式:在Δt内,对当前驻留的小区进行测量,以获得{S i|i为正整数,i≤N},N为Δt内对当前驻留的小区进行测量的总次数,S i为第i次测量获得的小区状态量;若{S i|i为正整数,i≤N}中任意S i满足S REF-S i大于或等于第一阈值,则更新S REF以使S REF等于S N,S REF为当前驻留的小区的参考小区状态量;其中,若S REF-S i大于或等于第一阈值,对当前驻留的小区的相邻小区进行测量。
在该种实现方式中,终端可以在驻留到当前驻留的小区的时刻即开始对当前驻留的小区进行测量,并将测量得到的小区状态量确定为S REF,终端在Δt时间内对当前驻留的小区进行持续测量,从而得到{S i|i为正整数,i≤N}。其中,终端可以在每次测量得到S i时,计算S REF-S i,并判断S REF-S i是否大于或等于第一阈值,或者,终端也可以计算S i-S REF,并判断S i-S REF是否小于或等于第一阈值。也即,在本申请中,形同A-B的表达式可以由B-A代替。若Δt内测得的所有S i均满足上述条件,则说明当前驻留的小区的信号在Δt内变差了,在这种情况下,终端可以在Δt结束时,对S REF进行更新,使得S REF等于在Δt内最后一次测得的值S N,并且,启动对相邻小区的测量,以便终端可以重选或切换到信号更好的小区上。
可选地,在一种可能的情况下,上述S REF也可以是终端在其他时刻测得的当前驻留的小区的信号质量或信号功率,,还可以是在驻留到当前驻留的小区的时刻之前,将最新(或最近)一次测量的当前驻留的小区的小区状态量确定为S REF,本申请实施例对此不做具体限定。
可选地,终端测量得到S N的时刻可以为当前时刻(Current),则S N为当前小区状态量或最近一次测得的小区状态量。
所述当前驻留的小区还可以称为服务小区(Serving Cell),所述参考小区状态量为参考(Reference)的小区状态量或小区状态量的参考值,所述对所述当前驻留的小区的相邻小区进行测量还包括对同频和/或异频进行测量。
需要说明的是,上述关于S REF、S N以及当前驻留的小区的解释同样适用于本申请实施例中其他实现方式中的S REF、S N与当前驻留的小区。
通过该种实现方式,终端在确定Δt内的小区状态量较参考小区状态量均减小时,一方面,终端可以启动对相邻小区的测量,另一方面,终端可以将S REF更新为Δt内最后一次测得的小区状态量S N,这样,若终端在测量相邻小区之后,未能成功重选到其他小区上,则可以基于更新后的S REF再次测量当前驻留的小区在Δt内的小区状态量是否满足条件,从而确定是否再次启动对相邻小区的测量,相较于终端持续测量相邻小区而言,减少了终端测量相邻小区的次数,降低了终端功耗。
第二种方式:对当前驻留的小区进行测量以获得当前小区状态量S current;若S current-S REF大于或等于第二阈值,则更新S REF以使S REF等于S current,S REF为当前驻留的小区的参考小区状态量;其中,若S REF-S current大于或等于第一阈值,对当前驻留的小区的相邻小区进行测量。
在该种实现方式中,终端可以在每次测量小区状态量之后,将测量得到的小区状态量S current与当前驻留的小区的参考状态量S REF进行比较,若S current-S REF大于或等于第二阈值,则说明到当前为止,小区状态量的增加量已经达到了第二阈值,也即,当前驻留的小区的信号功率或信号质量没有下降,在这种情况下,终端可以不必对相邻小区进行测量,而是将S REF更新为S current,进而继续测量当前驻留的小区的小区状态量,并与更新后的S REF进行比较,以便在当前驻留的小区的信号质量或信号功率发生下降时,及时启动对相邻小区的测量。
可选地,若S REF-S current大于或等于第一阈值,则说明到当前时刻,当前驻留的小区的小区状态量的下降量已经达到了第一阈值,也即,当前驻留的小区的信号变差较多,在这种情况下,终端可以启动对当前驻留的小区的相邻小区的测量,以便终端可以根据测量结果重选或切换小区。
所述当前小区状态量S current为当前(Current)的小区状态量或小区状态量的当前值或小区状态量的最新值或小区状态量的最近一次测量值。
通过该种方式,终端可以实时将测量得到的小区状态量与参考小区状态量进行比较, 并且在小区状态量的变化量达到阈值时,及时启动对相邻小区的测量,进而使得终端能够在小区信号变差时更及时地进行小区重选或切换。
第三种方式:在Δt内,对当前驻留的小区进行测量,以获得{S i|i为正整数,i≤N},N为Δt内对当前驻留的小区进行测量的总次数,S i为第i次测量获得的小区状态量;更新S REF以使S REF等于{S i|i为正整数,i≤N}中的最大值或等于{S i|i为正整数,i≤N}的平均值,S REF为当前驻留的小区的参考小区状态量;其中,若S REF-S i大于或等于第一阈值,对当前驻留的小区的相邻小区进行测量。
在该种实现方式中,终端可以在驻留到当前驻留的小区时,测量当前驻留的小区的小区状态量S REF,终端在Δt时间内对当前驻留的小区进行持续测量,从而得到{S i|i为正整数,i≤N}。终端保存N个S i其中,终端可以在每次测量得到新的S i(记作S N+1)时,将当前终端保存的{S 1,S 2,S 3…S N-1,S N}替换为{S 2,S 3…S N-1,S N,S N+1}以得到新的{S 1,S 2,S 3…S N-1,S N},然后将S REF更新为此时更新后的{S i|i为正整数,i≤N}中的最大值或此时更新后的{S i|i为正整数,i≤N}的平均值。另外,终端还可以计算S REF-S i,若{S i|i为正整数,i≤N}中的任意S i均满足S REF-S i大于或等于第一阈值的条件,则当前驻留的小区的信号质量持续变差,此时,终端可以启动对当前驻留的小区的相邻小区的测量,以便终端有机会重选到更好的小区上进行驻留。
需要说明的是,在申请实施例中,当终端通过上述任一种方式启动对相邻小区的测量之后,均可以参考前述实施例中介绍的对相邻小区的相关测量方式来测量相邻小区的信号质量或信号功率,并按照前述实施例中介绍的重选或切换小区的方式根据测得的相邻小区的信号质量或信号功率来进行小区重选或切换,本申请实施例在此不再赘述。
图7是本申请实施例提供的一种重选小区的装置的框图,该装置应用于终端中,如图7所示,该装置700包括第一测量模块701、更新模块702和第二测量模块703。
第一测量模块701,用于在Δt内,对当前驻留的小区进行测量,以获得{S i|i为正整数,i≤N},N为Δt内对当前驻留的小区进行测量的总次数,S i为第i次测量获得的小区状态量;
更新模块702,用于若{S i|i为正整数,i≤N}中任意S i满足S REF-S i大于或等于第一阈值,则更新S REF以使S REF等于S N,S REF为当前驻留的小区的参考小区状态量;
第二测量模块703,用于若S REF-S i大于或等于第一阈值,对当前驻留的小区的相邻小区进行测量。
可选地,该装置还包括:
接收模块,用于从网络设备接收用于指示Δt的信息,或者用于指示第一阈值的信息。
可选地,该装置还包括:
获取模块,用于在重选到或选择到当前驻留的小区后,获取S REF
可选地,小区状态量包括信号功率RSRP或信号质量RSRQ。
可选地,相邻小区中的一个或多个小区的覆盖范围大于当前驻留的小区的覆盖范围。
可选地,该装置还包括:
重选模块,用于若相邻小区中的第一小区满足小区重选的条件,重选到第一小区。
可选地,该装置还包括:
发送模块,用于向网络设备发送测量报告,测量报告包括一个或多个小区的信号质量RSRQ或信号功率RSRP。
可选地,若一个或多个小区的频率的优先级低于当前驻留的小区的频率的优先级,则一个或多个小区的覆盖范围大于当前驻留的小区的覆盖范围;或者,
若一个或多个小区的优先级低于当前驻留的小区的优先级,则一个或多个小区的覆盖范围大于当前驻留的小区的覆盖范围;或者,
若一个或多个小区的频率低于当前驻留的小区的频率,则一个或多个小区的覆盖范围大于当前驻留的小区的覆盖范围;或者,
若一个或多个小区的小区类型为宏小区,当前驻留的小区的小区类型为小小区,则一个或多个小区的覆盖范围大于当前驻留的小区的覆盖范围。
图8是本申请实施例提供的一种重选小区的装置的框图,该装置应用于终端中,如图8所示,该装置800包括第一测量模块801、更新模块802和第二测量模块803。
第一测量模块801,用于对当前驻留的小区进行测量以获得当前小区状态量S current
更新模块802,用于若S current-S REF大于或等于第二阈值,则更新S REF以使S REF等于S current,S REF为当前驻留的小区的参考小区状态量;
第二测量模块803,用于若S REF-S current大于或等于第一阈值,对当前驻留的小区的相邻小区进行测量。
可选地,该装置还包括:
接收模块,用于从网络设备接收用于指示第一阈值的信息,或者用于指示第二阈值的信息。
可选地,该装置还包括:
获取模块,用于在重选到或选择到当前驻留的小区后,获取S REF
可选地,小区状态量包括信号功率RSRP或信号质量RSRQ。
可选地,相邻小区中的一个或多个小区的覆盖范围大于当前驻留的小区的覆盖范围。
可选地,该装置还包括:
重选模块,用于若相邻小区中的第一小区满足小区重选的条件,重选到第一小区。
可选地,该装置还包括:
发送模块,用于向网络设备发送测量报告,测量报告包括一个或多个小区的信号质量RSRQ或信号功率RSRP。
可选地,若一个或多个小区的频率的优先级低于当前驻留的小区的频率的优先级,则一个或多个小区的覆盖范围大于当前驻留的小区的覆盖范围;或者,
若一个或多个小区的优先级低于当前驻留的小区的优先级,则一个或多个小区的覆盖 范围大于当前驻留的小区的覆盖范围;或者,
若一个或多个小区的频率低于当前驻留的小区的频率,则一个或多个小区的覆盖范围大于当前驻留的小区的覆盖范围;或者,
若一个或多个小区的小区类型为宏小区,当前驻留的小区的小区类型为小小区,则一个或多个小区的覆盖范围大于当前驻留的小区的覆盖范围。
图9是本申请实施例提供的一种重选小区的装置的框图,该装置应用于终端中,如图9所示,该装置900包括第一测量模块901、更新模块902和第二测量模块903。
第一测量模块901,用于在Δt内,对当前驻留的小区进行测量,以获得{S i|i为正整数,i≤N},N为Δt内对当前驻留的小区进行测量的总次数,S i为第i次测量获得的小区状态量;
更新模块902,用于更新S REF以使S REF等于{S i|i为正整数,i≤N}中的最大值或等于{S i|i为正整数,i≤N}的平均值,S REF为当前驻留的小区的参考小区状态量;
第二测量模块903,用于若S REF-S i大于或等于第一阈值,对当前驻留的小区的相邻小区进行测量。
可选地,该装置还包括:
接收模块,用于从网络设备接收用于指示Δt的信息,或者用于指示第一阈值的信息。
可选地,该装置还包括:
获取模块,用于在重选到或选择到当前驻留的小区后,获取S REF
可选地,小区状态量包括信号功率RSRP或信号质量RSRQ。
可选地,相邻小区中的一个或多个小区的覆盖范围大于当前驻留的小区的覆盖范围。
可选地,该装置还包括:
重选模块,用于若相邻小区中的第一小区满足小区重选的条件,重选到第一小区。
可选地,该装置还包括:
发送模块,用于向网络设备发送测量报告,测量报告包括一个或多个小区的信号质量RSRQ或信号功率RSRP。
可选地,若一个或多个小区的频率的优先级低于当前驻留的小区的频率的优先级,则一个或多个小区的覆盖范围大于当前驻留的小区的覆盖范围;或者,
若一个或多个小区的优先级低于当前驻留的小区的优先级,则一个或多个小区的覆盖范围大于当前驻留的小区的覆盖范围;或者,
若一个或多个小区的频率低于当前驻留的小区的频率,则一个或多个小区的覆盖范围大于当前驻留的小区的覆盖范围;或者,
若一个或多个小区的小区类型为宏小区,当前驻留的小区的小区类型为小小区,则一个或多个小区的覆盖范围大于当前驻留的小区的覆盖范围。
为了实现上述实施例的方法,本申请实施例还提供相应的通信装置。
作为一种可选的设计,该通信装置的结构可以参考图2及相关说明。
作为另一种可选的设计,该通信装置可以包括处理器,或者还可以包括存储器。该处理器用于与存储器耦合,读取并执行存储器中的指令,以实现上述实施例中的方法。
上述实施例提供的测量装置在进行小区测量时,仅以上述各功能模块的划分进行举例 说明,实际应用中,可以根据需要而将上述功能分配由不同的功能模块完成,即将设备的内部结构划分成不同的功能模块,以完成以上描述的全部或者部分功能。另外,上述实施例提供的测量装置与前述实施例中的测量方法实施例属于同一构思,其具体实现过程详见方法实施例,这里不再赘述。
在上述实施例中,可以全部或部分地通过软件、硬件、固件或者其任意结合来实现。当使用软件实现时,可以全部或部分地以计算机程序产品的形式实现。该计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行该计算机指令时,全部或部分地产生按照本申请实施例该的流程或功能。该计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。该计算机指令可以存储在计算机可读存储介质中,或者从一个计算机可读存储介质向另一个计算机可读存储介质传输,例如,该计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如:同轴电缆、光纤、数据用户线(Digital Subscriber Line,DSL))或无线(例如:红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。该计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。该可用介质可以是磁性介质(例如:软盘、硬盘、磁带)、光介质(例如:数字通用光盘(Digital Versatile Disc,DVD))、或者半导体介质(例如:固态硬盘(Solid State Disk,SSD))等。
也即,在本申请实施例中,提供了一种计算机可读存储介质,当其在计算机上运行时,使得计算机执行前述实施例中提供的测量方法的步骤。
本领域普通技术人员可以理解实现上述实施例的全部或部分步骤可以通过硬件来完成,也可以通过程序来指令相关的硬件完成,所述的程序可以存储于一种计算机可读存储介质中,上述提到的存储介质可以是只读存储器,磁盘或光盘等。
以上所述为本申请提供的实施例,并不用以限制本申请,凡在本申请的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本申请的保护范围之内。

Claims (12)

  1. 一种测量方法,其特征在于,所述方法包括:
    在Δt内,对当前驻留的小区进行测量,以获得{S i|i为正整数,i≤N},N为Δt内对所述当前驻留的小区进行测量的总次数,S i为第i次测量获得的小区状态量;
    若{S i|i为正整数,i≤N}中任意S i满足S REF-S i大于或等于所述第一阈值,则更新S REF以使S REF等于S N,S REF为所述当前驻留的小区的参考小区状态量;其中,若S REF-S i大于或等于所述第一阈值,对所述当前驻留的小区的相邻小区进行测量。
  2. 一种测量方法,其特征在于,所述方法包括:
    对当前驻留的小区进行测量以获得当前小区状态量S current
    若S current-S REF大于或等于第二阈值,则更新S REF以使S REF等于S current,S REF为所述当前驻留的小区的参考小区状态量;
    其中,若S REF-S current大于或等于所述第一阈值,对所述当前驻留的小区的相邻小区进行测量。
  3. 一种测量方法,其特征在于,所述方法包括:
    在Δt内,对当前驻留的小区进行测量,以获得{S i|i为正整数,i≤N},N为Δt内对所述当前驻留的小区进行测量的总次数,S i为第i次测量获得的小区状态量;
    更新S REF以使S REF等于{S i|i为正整数,i≤N}中的最大值或等于{S i|i为正整数,i≤N}的平均值,S REF为所述当前驻留的小区的参考小区状态量;
    其中,若S REF-S i大于或等于第一阈值,对所述当前驻留的小区的相邻小区进行测量。
  4. 根据权利要求1-3任一所述的方法,其特征在于,还包括:
    从网络设备接收用于指示Δt的信息,或者用于指示所述第一阈值的信息,或者用于指示所述第二阈值的信息。
  5. 根据权利要求1-4任一所述的方法,其特征在于,还包括:
    在重选到或选择到所述当前驻留的小区后,获取S REF
  6. 根据权利要求1-5任一所述的方法,其特征在于,所述小区状态量包括信号功率RSRP 或信号质量RSRQ。
  7. 根据权利要求1-6任一所述的方法,其特征在于,所述相邻小区中的一个或多个小区的覆盖范围大于所述当前驻留的小区的覆盖范围。
  8. 根据权利要求7所述的方法,其特征在于,还包括:
    若所述相邻小区中的第一小区满足小区重选的条件,重选到所述第一小区。
  9. 根据权利要求7或8所述的方法,其特征在于,还包括:
    向网络设备发送测量报告,所述测量报告包括所述一个或多个小区的信号质量RSRQ或信号功率RSRP。
  10. 根据权利要求7-9任一所述的方法,其特征在于,
    若所述一个或多个小区的频率的优先级低于所述当前驻留的小区的频率的优先级,则所述一个或多个小区的覆盖范围大于所述当前驻留的小区的覆盖范围;或者,
    若所述一个或多个小区的优先级低于所述当前驻留的小区的优先级,则所述一个或多个小区的覆盖范围大于所述当前驻留的小区的覆盖范围;或者,
    若所述一个或多个小区的频率低于所述当前驻留的小区的频率,则所述一个或多个小区的覆盖范围大于所述当前驻留的小区的覆盖范围;或者,
    若所述一个或多个小区的小区类型为宏小区,所述当前驻留的小区的小区类型为小小区,则所述一个或多个小区的覆盖范围大于所述当前驻留的小区的覆盖范围。
  11. 一种通信装置,其特征在于,包括:
    处理器,用于与存储器耦合,读取所述存储器中的指令并执行所述指令以实现如权利要求1-10任一所述的方法。
  12. 根据权利要求11所述的装置,其特征在于,还包括:
    所述存储器。
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BR112020016285A2 (pt) 2020-12-15
JP7046204B2 (ja) 2022-04-01
CN111713139A (zh) 2020-09-25
EP3745775A4 (en) 2021-01-13
CN111713139B (zh) 2022-08-09
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US20200374719A1 (en) 2020-11-26
EP3745775A1 (en) 2020-12-02

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